Page 1 REPAIR GUIDE SM-X520 SM-X526B SM-X528U English. 04/2025. Rev.1.0 www.samsung.com...
Page 2: Table Of Contents
Updating Software through Smart Switch Recovering from a Software Update Failure Recovering on Another Computer 10 Performing a Factory Data Reset Quality Test Quality Test Using the Samsung Members App Device Diagnostics Test Items Calibrations Calibrations Used Parts and Calibration Functions in Supported Models...
Page 3 Table of Contents 40 Under-display Camera Calibration (Fold Models Only) 42 Digital Hall Sensor Calibration (Fold and Flip Models Only) Exploded View and Parts List 45 Exploded View 46 Parts List Disassembly and Assembly 48 Tools for Disassembly and Assembly 53 Fasteners (Adhesives and Materials) for Assembly 55 Disassembly and Reassembly for replacement 56 SIM Card Tray...
Page 4 Table of Contents 120 Rear Camera 120 Disassembly 122 Reassembly 125 Speaker 1 125 Disassembly 133 Reassembly 141 Speaker 2 141 Disassembly 146 Reassembly 152 Side Button (Fingerprint Recognition Sensor) 152 Disassembly 156 Reassembly 164 Volume Button 164 Disassembly 165 Reassembly 166 Back Cover Module 166 Disassembly 188 Reassembly...
Page 5: Usage Notices
Precautions for Repair Samsung is not liable for any damage or defect determined to be caused by repair by a non-authorised carrier, self repair or non-professional repair of the device. Samsung...
Page 6: Esd (Electrostatic Discharge) Precautions
Usage Notices Make sure to wear the appropriate safety equipment before carrying out repairs. • Samsung is not responsible for injuries that may occur because of not wearing the proper safety equipment. Refer to Tools for Disassembly and Assembly for a list of tools that you will need for assembling and disassembling the device.
Page 7: Instructional Icons
Usage Notices Instructional Icons Warning: situations that could cause injury to yourself or others Caution: situations that could cause damage to your device or other equipment Notice: notes, usage tips, or additional information...
Page 8: Software Update
You must download the desktop version of the Smart Switch app from www.samsung.com/smartswitch. This feature may not be supported on some devices or computers. • Limitations apply. Visit www.samsung.com/smartswitch for details. Samsung • takes copyright seriously. On the computer, visit www.samsung.com/smartswitch to download Smart Switch.
Page 9: Recovering From A Software Update Failure
Before performing the factory data reset, remember to make backup copies of all important data stored in the device. Samsung is not responsible for the loss of data stored in the device. Disconnect your device from the computer and launch Smart Switch again on the computer.
Page 10: Performing A Factory Data Reset
Before performing the factory data reset, remember to make backup copies of all important data stored in the device. Samsung is not responsible for the loss of data stored in the device.
Page 11 Software Update Tap Reset → Delete all. All data will be deleted when rebooting. During a factory data reset, the device may repeat rebooting and the logo may be displayed for a long time.
Page 12: Quality Test
Quality Test Quality Test Using the Samsung Members App It is recommended to evaluate your device through the Samsung Members app after it has been repaired to guarantee its performance. If the test results show any abnormalities or that another malfunction has occurred because of the repair, visit a Samsung Service Centre to receive further instruction.
Page 13: Test Items
If the exclamation mark appears on any test • items after finishing the test, tap them to find the solutions. If the problem persists, visit a Samsung Service Centre. Test Items Battery status Check the battery life and capacity.
Page 14 Quality Test Check whether the near field communication (NFC) feature is working normally. Check whether the SIM is working normally. If the test result is not Normal, remove the SIM card from the SIM card tray and replace it. If possible, try again with another SIM card.
Page 15 Quality Test Official software Check whether the official software is being used. Mobile network Check whether your mobile network is working normally. Sensors Check whether the sensors are working normally.
Page 16 Quality Test Location accuracy Check whether the location feature is working normally. The results might be more accurate when you test outside. Wi-Fi Check whether the Wi-Fi feature is working normally. To test this feature, the Wi-Fi feature must be activated.
Page 17 Quality Test Proximity recognition Check whether the proximity recognition feature is working normally. Buttons Check whether the buttons are working normally. Make sure that the buttons are not contaminated to get more accurate test results. Vibration Check whether the vibration feature is working normally.
Page 18 Quality Test Speaker Check whether the speakers are working normally. If you cannot hear the sound well, check whether the media volume is turned up and if the speaker is obstructed by foreign objects, the case, or the protective film. Check whether the microphones are working normally.
Page 19 Quality Test Fingerprint recognition Check whether the fingerprint recognition sensor is working normally. To test this feature, your fingerprint must be registered. Face recognition Check whether the face recognition sensor is working normally. To test this feature, your face must be registered.
Page 20 This test is only available for the S Pen • supported models. Cable charging Check whether the cable charging feature is working normally. Use only Samsung-approved chargers. Wireless charging Check whether the wireless charging feature is working normally. Use only Samsung-approved wireless chargers.
Page 21 Quality Test Wired headphones Check whether the headphone jack recognises the headphones normally. To test this feature, you must connect headphones. USB connection Check whether the multipurpose jack recognises the USB cable normally. To test this feature, the USB cable must be connected to a computer.
Page 22: Calibrations
In order to guarantee the stable and correct performance of components or sensors, it is required to conduct calibrations through the Self Repair Assistant app after repair. If the calibration results show any malfunctions, visit a Samsung Service Centre for further action. Any malfunctions caused by your repair may incur additional repair charges.
Page 23: Using The Self Repair Assistant App
Calibrations Depending on the model, the screen module may include batteries. So when • the screen module is replaced, the battery also has to be selected and a battery cycle reset must be performed. In the Fold models, touch screen panel calibration is performed for both the •...
Page 24 Calibrations Read Privacy Notice and tap Continue. If you are not signed in to your • Samsung account, a button will appear to sign in. If you select the link to read the full • Privacy Notice, you will be directed to...
Page 25 Calibrations Check permissions and tap Continue. Select the part that you have replaced and tap Next. The required calibrations will be • conducted automatically. If the device does not have certain • components or sensors associated with the part that has been replaced, relative calibration will be skipped automatically.
Page 26 Calibrations Read the on-screen instructions and tap Start. Refer to Optical Fingerprint Sensor Calibration, Resetting the Battery Cycle Count, Range Sensor Calibration, Touch Screen Panel Calibration, Speaker Calibration, Under-display Camera Calibration (Fold Models Only), and Digital Hall Sensor Calibration (Fold and Flip Models Only) for more information.
Page 27 Calibrations Check the results of each calibration item. Completed: Calibration was done • normally. Failed: Calibration failed. • Skipped: Calibration was skipped. • On the calibration results page, tap Close to close the app. Restart your device to finish calibrating.
Page 28: Optical Fingerprint Sensor Calibration
Calibrations Optical Fingerprint Sensor Calibration Whenever the screen is replaced, the optical fingerprint sensor must be calibrated to guarantee optimised fingerprint sensor performance for devices that have it. Optical fingerprint sensor calibration is available through the Self Repair Assistant app. This feature may not be available depending on the model.
Page 29 Calibrations Check the part and calibration and then tap Start. Read the on-screen instructions and tap Start. The white calibration box must be prepared before you start. Put the white calibration box on the sensor area (below the square side) and push the rubber by applying force with your finger.
Page 30 Calibrations Put the black calibration box on the sensor area (below the square side) and push the rubber by applying force with your finger. Tap Next and keep pushing the rubber with your finger until you see the success message. The black calibration box must be •...
Page 31: Resetting The Battery Cycle Count
Calibrations Check the result of the calibration. Completed appears only when the calibration is successfully completed. If Completed does not appear, try calibrating again. Resetting the Battery Cycle Count The battery cycle count should be reset whenever your device’s battery is replaced. Launch the Self Repair Assistant app.
Page 32 Calibrations Check part and calibration and tap Start. Tap Start. Read the on-screen instructions and tap Scan to scan the QR code, or tap Enter manually to enter the serial number manually.
Page 33 Calibrations Scan the QR code or enter the serial number that appears on the battery package. The reset will begin. This image is an example of the QR code. Make sure to scan the QR code on the battery package. Check the calibration results.
Page 34: Range Sensor Calibration
Calibrations Range Sensor Calibration When replacing screens, batteries, back glasses, or charging ports, range sensor calibration is required to ensure the range sensors of devices equipped with them are optimised. Range sensor calibration is available through the Self Repair Assistant app. Some content may differ from your device depending on the region, service provider, model specifications, or device’s software.
Page 35 Calibrations Read the on-screen instructions and tap Start. In a dark room or area, place the phone face-down, then press the Volume button. The calibration will perform automatically. A tone will play when calibration is complete. Check the calibration result.
Page 36: Touch Screen Panel Calibration
Calibrations Touch Screen Panel Calibration When replacing screens, touch screen panel calibration is required to ensure accurate touch input. Touch screen panel calibration is available through the Self Repair Assistant app. In the Fold models, touch screen panel calibration is performed for both the main and cover screens.
Page 37 Calibrations Read the on-screen instructions and tap Start. The calibration will perform automatically and the screen will turn white during calibration. Check the calibration result.
Page 38: Speaker Calibration
Calibrations Speaker Calibration When replacing speakers, the speaker must be calibrated to guarantee optimised speaker performance for devices that have it. Speaker calibration is available through the Self Repair Assistant app. Launch the Self Repair Assistant app. Select the part that you have replaced and tap Next.
Page 39 Calibrations Tap Start. The calibration will perform automatically. Check the calibration result.
Page 40: Under-Display Camera Calibration (Fold Models Only)
Calibrations Under-display Camera Calibration (Fold Models Only) Whenever the screen is replaced, the under-display camera must be calibrated to guarantee optimised under-display camera performance for devices that have it. Under-display camera calibration is available through the Self Repair Assistant app. This feature may not be available depending on the model.
Page 41 Calibrations Tap Start. The calibration will perform automatically. Check the calibration result.
Page 42: Digital Hall Sensor Calibration (Fold And Flip Models Only)
The boot screen (the screen where the Samsung and carrier logos appear) will appear normally and then turn off, so it is not a hardware failure.
Page 43 Calibrations Launch the Self Repair Assistant app. Select the part that you have replaced and tap Next. Check part and calibration and tap Next. Tap Start.
Page 44 Calibrations The calibration will perform automatically. Check the calibration result.
Page 45: Exploded View And Parts List
Exploded View and Parts List Exploded View and Parts List The product’s composition may vary depending on the country, region, or carrier. Exploded View...
Page 46: Parts List
Exploded View and Parts List Parts List Number Name QCB05 Antenna Flex Cable (Blue) QCB01 Antenna Flex Cable (Black) QCB04 Antenna Flex Cable (Red) QCB03 Antenna Flex Cable (Grey) QIF01 Charging Port QME20 SIM Card Socket QME18 Main Flex Cable (Sub PBA to Main Board) QME16 Antenna PBA QBR07...
Page 47 Exploded View and Parts List Number Name QSP02 Speaker 1 QSP01 Speaker 2 QFR01 Screen QBC01 Back cover module QMP01 Main Board (PBA) QME15 Sub PBA QBA01 Battery...
Page 48: Disassembly And Assembly
Disassembly and Assembly Disassembly and Assembly Tools for Disassembly and Assembly When repairing devices, you absolutely must wear protective equipment for your safety. Availability of rental services for toolkits with a complete set of tools for self repair service may vary depending on the country and is currently available only in limited countries.
Page 49 Disassembly and Assembly Tool & Part Code Image Description Prevents electrostatic damage ESD Safe Mat (recommended) Ejection Pin Pin for ejecting the SIM card tray Cross-head Tool for screwing in cross-head Screwdriver screws Tool for disassembling the screen Opening Pick and other parts Opening Tool (L) Tool for disassembling the screen...
Page 50 Disassembly and Assembly Tool & Part Code Image Description Tool for handling connectors, cables, and other parts Because it is possible • to damage parts or components when using ESD Safe Tweezers sharp tweezers, use and Round Tip tweezers made with plastic Metal Tweezers or rubber material.
Page 51 Disassembly and Assembly Tool & Part Code Image Description Tool to place the device when pressing the screen or battery using the press fixture This tool is available to use • by the rental of tool kit that contains a complete set Bottom Press Tray of the tools for self repair service.
Page 52 Disassembly and Assembly Tool & Part Code Image Description Tool to cover the battery when pressing the battery using the press fixture Battery Rubber Pad This tool is available to use by the rental of tool kit that contains a complete set of the tools for self repair service.
Page 53: Fasteners (Adhesives And Materials) For Assembly
Disassembly and Assembly Fasteners (Adhesives and Materials) for Assembly The fasteners composition may vary depending on the repair parts, country, region, or carrier. Item Quantity Image Description Double sided Screen adhesive tape Adhesive Tape for attaching the screen Screws for the bracket (18 ea) Screws for the Screw 3570...
Page 54 Disassembly and Assembly Item Quantity Image Description Adhesive tape Screen attached to the Connector screen flex cable Adhesive Tape connector Adhesive tape Side Button attached to the Water-Resistant plastic bracket of Tape the Side button module Plastic bracket of Side Button the Side button Plastic Bracket module...
Page 55: Disassembly And Reassembly For Replacement
Disassembly and Assembly Disassembly and Reassembly for replacement The product’s composition may vary depending on the country, region, or • carrier. Repairable parts may vary depending on the country or region. • Before disassembling: Unplug and turn off device before disassembling. •...
Page 56: Sim Card Tray
Disassembly and Assembly SIM Card Tray Disassembly Prepare the device to repair by yourself. Insert the ejection pin into the hole of the SIM card tray to loosen the tray and pull out the tray gently from the tray slot.
Page 57 Disassembly and Assembly...
Page 58: Reassembly
Disassembly and Assembly Reassembly Leaving screws inside the device may damage internal components, such as the battery. During assembly, be extra careful not to leave any unassembled screws inside the device. Insert the SIM card tray back into the slot. Ensure that there are no abnormalities.
Page 59: Screen
Disassembly and Assembly Screen Disassembly When removing the screen, ensure that the device is fixed on a flat surface. When removing the screen of Galaxy Tab S10 FE, you need a large size suction cup. Heat the microwaveable heating bag and apply it to the left edge of the screen for 3 minutes.
Page 60 Disassembly and Assembly Place the suction cup (L) on the top left edge of the screen, and lift it upward carefully. As the screen can be damaged by excessive force, be careful not to damage the • screen. Be careful that the suction cup does not adhere to the area where the tape or •...
Page 61 Disassembly and Assembly While pulling up the suction cup with steady force to create the gap between the screen and the back cover module, place the opening pick in the gap between the screen and the back cover module and slide the opening pick back and forth along the edge to slice through the adhesive.
Page 62 Disassembly and Assembly...
Page 63 Disassembly and Assembly...
Page 64 Disassembly and Assembly...
Page 65 Disassembly and Assembly Before removing the screen completely, using the tweezers, remove the tape from the flex cable connector and lift up the connector cap to separate the flex cable from the screen. Lift the screen and separate it from the back cover module completely. Make sure to separate the connectors before removing the screen completely.
Page 66 Disassembly and Assembly...
Page 67 Disassembly and Assembly...
Page 68: Reassembly
Disassembly and Assembly Reassembly Leaving screws inside the device may damage internal components, such as the battery. When assembling, be extra careful not to leave any unassembled screws inside the device. Before attaching the screen, make absolutely sure that there are no screws, miscellaneous parts, or other foreign objects on the inside of the device (among the battery, PBA, etc.).
Page 69 Disassembly and Assembly...
Page 70 Disassembly and Assembly Remove the inner vertical transparent film on the centre of the new screen adhesive tape.
Page 71 Disassembly and Assembly Align the adhesive tape precisely on the back cover module and attach it. Gently press down the upper and lower middle of the adhesive tape to ensure a secure fit.
Page 72 Disassembly and Assembly Lift the right side of the adhesive tape and remove the inner transparent film from the centre of the inside. Align the adhesive tape precisely on the right of the back cover module so that the exposed tape is exactly attached. Attach the tape and gently press down the edges of the tape using the tweezers to ensure a secure fit.
Page 73 Disassembly and Assembly Lift the left side of the adhesive tape and remove the inner transparent film from the centre of the inside. Align the adhesive tape precisely on the left of the back cover module so that the exposed tape is exactly attached. Attach the tape and gently press down the edges of the tape using the tweezers to ensure a secure fit.
Page 74 Disassembly and Assembly While holding the handle of the release film, remove the green transparent film from the adhesive tape. Leave the inside of the screen visible and connect the flex cable connector between the screen and the back cover module. Be careful not to damage the cables and the connectors.
Page 75 Disassembly and Assembly In a state where the flex cable connector is connected, close the connector cap.
Page 76 Disassembly and Assembly Using the tweezers, remove release film of the new screen connector adhesive tape and attach it on the cable connector cap. Secure the connector cap with the new adhesive tape, then press down softly.
Page 77 Disassembly and Assembly Turn the screen slowly over back to its original state and attach it to the back cover module. Be careful not to damage the cables and the connectors. • Be careful not to damage the screen. •...
Page 78 Disassembly and Assembly Press down on the edges of the screen evenly in order to attach the screen perfectly. Check the gap between the screen and the back cover module. If you feel some gap, remove the screen and attach it again. Some foreign materials can be inside the device.
Page 79 Disassembly and Assembly Now you can press the fully assembled screen using the press fixture. Remove the press fixture body and its handle from the rental tool kit packaging. Keep your hands out of the press fixture to avoid mechanical pinching and injury. This tool is only available to use by the rental of tool kit that contains a •...
Page 80 Disassembly and Assembly Remove the bottom press tray and top press tray from the rental tool kit packaging. Place the screen facing up, and then place the device on the bottom press tray position.
Page 81 Disassembly and Assembly Place the top press tray in the position of the bottom press tray and lightly press it to assemble so that each corner can be fixed to the guide pin. Be careful not to damage the screen and device.
Page 82 Disassembly and Assembly Position the top half of the press tray with the device lengthwise in the centre of the press fixture. Rotate the torque limit handle to the clockwise until it makes a sound. In that press state, stay the tray for 30 seconds. Keep your hands out of the press fixture to avoid mechanical pinching and injury.
Page 83 Disassembly and Assembly When the press is completed after 30 seconds, rotate the torque limit handle to the anticlockwise and remove the tray from the press fixture. Position the bottom half of the press tray with the device lengthwise in the centre of the press fixture.
Page 84 Disassembly and Assembly Rotate the torque limit handle to the clockwise until it makes a sound. In that press state, stay the tray again for 30 seconds. Keep your hands out the of press fixture to avoid mechanical pinching and injury. When you reach the required maximum force (1 N), a sound is made from the handle if you turn the handle.
Page 85 Disassembly and Assembly Remove the device carefully from the tray.
Page 86: Bracket
Disassembly and Assembly Bracket Disassembly Remove the Screen first before you begin. Check and remove the screws at the 18 different points on the bracket using a cross-head screwdriver. Be careful not to damage the near components. Check the number of screws that have been removed, and store them carefully to make sure that no unassembled screws are left inside the device during assembly.
Page 87 Disassembly and Assembly...
Page 88: Reassembly
Disassembly and Assembly Reassembly Leaving screws inside the device may damage internal components, such as the battery. When assembling, be extra careful not to leave any unassembled screws inside the device. Place the bracket to the back cover module and press down on it in its position smoothly.
Page 89 Disassembly and Assembly Check the screw 3570 (18 ea) and fasten them on the bracket using a cross-head screwdriver. Be careful not to damage the near components. Check carefully with your fingers to see if there are any screws or other foreign substances inside the device (battery, PBA, cable, etc.).
Page 90: Microphone
Disassembly and Assembly Microphone Disassembly Remove the Screen Bracket first before you begin. • The microphones are already built in the bracket module. Disassemble the • microphones only if the microphones themselves require the repairs. Using the tweezers, disconnect the top microphone and the side microphone from the bracket.
Page 91 Disassembly and Assembly...
Page 92: Reassembly
Disassembly and Assembly Reassembly Leaving screws inside the device may damage internal components, such as the battery. When assembling, be extra careful not to leave any unassembled screws inside the device. Using the tweezers, remove all release film of a new top microphone adhesive tape and assemble the top microphone to the exact position of the bracket.
Page 93 Disassembly and Assembly Press the top microphone with your fingers softly so that the microphone can be completely attached. Be careful not to damage the microphone. Using the tweezers, remove all release film of a new side microphone adhesive tape and assemble the side microphone to the exact position of the bracket.
Page 94 Disassembly and Assembly Press the side microphone with your fingers softly so that the microphone can be completely attached. Be careful not to damage the microphone. Reassemble the Bracket Screen to complete assembly.
Page 95: Charging Port
Disassembly and Assembly Charging Port Disassembly Remove the Screen Bracket first before you begin. Using the tweezers, disconnect the battery connector from the main board first. For the 5G or LTE devices, separate the 3 coaxial cable connectors (Grey/Blue/Black). Using the tweezers, separate 2 connectors from the main board and remove the screen flex cable completely.
Page 96 Disassembly and Assembly Coaxial cable (Grey) Coaxial cable (Blue) Coaxial cable (Black)
Page 97 Disassembly and Assembly Check and remove the screws at the 4 different points on the sub PBA using a cross-head screwdriver. Be careful not to damage the near components. Check the number of screws that have been removed, and store them carefully to make sure that no unassembled screws are left inside the device during assembly.
Page 98 Disassembly and Assembly Coaxial cable (Blue) Coaxial cable (Black)
Page 99 Disassembly and Assembly Coaxial cable (Grey)
Page 100 Disassembly and Assembly...
Page 101 Disassembly and Assembly...
Page 102 Disassembly and Assembly Using the tweezers, disassemble the flex cable connector cover.
Page 103 Disassembly and Assembly Using the tweezers, disconnect the flex cable connector and remove the charging port flex cable completely.
Page 104 Disassembly and Assembly Check the screws at the 2 different points on the charging port and remove them using a cross-head screwdriver. Check the number of screws that have been removed, and store them carefully to make sure that no unassembled screws are left inside the device during assembly.
Page 105 Disassembly and Assembly Using the tweezers, separate the FPCB of charging port carefully and remove the charging port from the back cover module.
Page 106: Reassembly
Disassembly and Assembly Reassembly Leaving screws inside the device may damage internal components, such as the battery. When assembling, be extra careful not to leave any unassembled screws inside the device. Remove the release film of the new charging port. Insert the charging port into the exact position of the back cover module and press down on it in its position softly.
Page 107 Disassembly and Assembly Check the screw 3570 (2 ea) on the charging port module and fasten them using a cross-head screwdriver.
Page 108 Disassembly and Assembly Place the flex cable to the back cover module and connect the connector carefully. Be careful not to damage the cable.
Page 109 Disassembly and Assembly Using the tweezers, place the flex cable connector cover to the exact position, and assemble it to the back cover module. Press down on it in its position smoothly. Connect the flex cable connector on the back of sub PBA. Place the sub PBA to the exact position, and assemble it to the back cover module.
Page 110 Disassembly and Assembly...
Page 111 Disassembly and Assembly...
Page 112 Disassembly and Assembly For the 5G or LTE devices, carefully connect the cables (Grey/Black/Blue) to the speaker modules. Be careful not to damage the near components. • Be careful not to damage the cables while connecting the connector. • The 3 coaxial cables (Grey/Black/Blue) are only available for the 5G or LTE •...
Page 113 Disassembly and Assembly Coaxial cable (Blue) Check the screw 3523 (4 ea) and fasten them on the sub PBA using a cross-head screwdriver. Be careful not to damage the sub PBA and near components.
Page 114 Disassembly and Assembly Place the screen flex cable to the back cover module and connect the 2 connectors carefully. Be careful not to damage the main board and near components. • Be careful not to damage the cable while connecting the connector. •...
Page 115 Disassembly and Assembly For the 5G or LTE devices, connect the 3 coaxial cables (Grey/Blue/Black) to the main board carefully. The 3 coaxial cables (Grey/Blue/Black) are only available for the 5G or LTE • devices. The cables and connectors may vary depending on the country, region, or •...
Page 116: Front Camera
Disassembly and Assembly Front Camera Disassembly Remove the Screen Bracket first before you begin. Using the tweezers, disconnect the battery connector from the main board. Then, separate the front camera connector from the main board and remove the front camera carefully from the device.
Page 117 Disassembly and Assembly...
Page 118: Reassembly
Disassembly and Assembly Reassembly Leaving screws inside the device may damage internal components, such as the battery. When assembling, be extra careful not to leave any unassembled screws inside the device. Using the tweezers, place the front camera in the camera hole so that the lens faces upward, and gently insert the front camera.
Page 119 Disassembly and Assembly Connect the battery connector to the main board. Be careful not to damage the battery. Be careful not to damage the battery connector and near components. Reassemble the Bracket Screen to complete assembly.
Page 120: Rear Camera
Disassembly and Assembly Rear Camera Disassembly Remove the Screen Bracket first before you begin. Using the tweezers, disconnect the battery connector from the main board. Then, disconnect the coaxial cable connector (white) from the main board and lift the coaxial cable (white) up and separate it from the rear camera module.
Page 121 Disassembly and Assembly...
Page 122: Reassembly
Disassembly and Assembly Reassembly Leaving screws inside the device may damage internal components, such as the battery. When assembling, be extra careful not to leave any unassembled screws inside the device. Using the tweezers and your fingers, remove all release films from the new rear camera module.
Page 123 Disassembly and Assembly Press down softly and evenly on the camera so that the rear camera can be fully inserted. Using the tweezers, connect the rear camera connector and the coaxial cable connector (white) to the main board. Assemble the coaxial cable (white) completely in its position.
Page 124 Disassembly and Assembly Connect the battery connector to the main board. Be careful not to damage the battery. Be careful not to damage the battery connector and near components. Reassemble the Bracket Screen to complete assembly.
Page 125: Speaker 1
Disassembly and Assembly Speaker 1 Disassembly Remove the Screen Bracket first before you begin. Using the tweezers, disconnect the battery connector from the main board first. Separate the coaxial cable connector (White) from the main board lift it up to seperate from the rear camera module.
Page 126 Disassembly and Assembly Coaxial cable (Red) Coaxial cable (Grey) Coaxial cable (Blue) Coaxial cable (Black)
Page 127 Disassembly and Assembly...
Page 128 Disassembly and Assembly Check the screw on the main board and the screw on the VT board. Remove all 2 screws using a cross-head screwdriver. Be careful not to damage the near components. Check the number of screws that have been removed, and store them carefully to make sure that no unassembled screws are left inside the device during assembly.
Page 129 Disassembly and Assembly...
Page 130 Disassembly and Assembly Remove the VT board and the coaxial cable (White) additionally to disassemble only the main board.
Page 131 Disassembly and Assembly Check the 4 screws on the speaker module and remove them using a cross-head screwdriver. Check the number of screws that have been removed, and store them carefully to make sure that no unassembled screws are left inside the device during assembly.
Page 132 Disassembly and Assembly Using the tweezers, separate the FPCB of the speaker module carefully. Lift up on the separator groove and remove it from the back cover module.
Page 133: Reassembly
Disassembly and Assembly Reassembly Leaving screws inside the device may damage internal components, such as the battery. During assembly, be extra careful not to leave any unassembled screws inside the device. Using the tweezers, remove all release film of a new speaker. Place the speaker module to the exact position, and assemble it to the back cover module.
Page 134 Disassembly and Assembly...
Page 135 Disassembly and Assembly Check the screws 3570 (4 ea) at the different points and fasten them to the speaker using a cross-head screwdriver. Be careful to not damage the speaker and near components. Using the tweezers, place the main board and the VT board to the exact position and assemble it to the back cover module.
Page 136 Disassembly and Assembly...
Page 137 Disassembly and Assembly Check the screw 3521 (2 ea) at the different points and fasten them to the main board and VT board using a cross-head screwdriver. Be careful not to damage the near components.
Page 138 Disassembly and Assembly Place the screen flex cable to the back cover module and connect the 5 connectors carefully. Be careful not to damage the main board and the near components. • Be careful not to damage the cable while connecting the connector. •...
Page 139 Disassembly and Assembly Using the tweezers, connect the coaxial cable connector (White) to the main board. In case of the coaxial cable (White), assemble it to the exact position over the rear camera module. For the 5G or LTE devices, connect the 4 coaxial cable connectors (Red/Blue/Grey/Black) additionally.
Page 140 Disassembly and Assembly Connect the battery connector to the main board. Be careful not to damage the battery. Be careful not to damage the battery connector and near components. Reassemble the Bracket Screen to complete assembly.
Page 141: Speaker 2
Disassembly and Assembly Speaker 2 Disassembly Remove the Screen Bracket first before you begin. Check for the disassembly steps of the Charging Port and completely separate the sub PBA.
Page 142 Disassembly and Assembly Check the 5 screws on the speaker module and remove them using a cross-head screwdriver. Be careful not to damage the near components. Check the number of screws that have been removed, and store them carefully to make sure that no unassembled screws are left inside the device during assembly.
Page 143 Disassembly and Assembly...
Page 144 Disassembly and Assembly...
Page 145 Disassembly and Assembly For the 5G or LTE devices, remove the coaxial cable (Red) completely from the speaker with the tweezers. Be careful not to damage the speaker and cable. The coaxial cable (Red) is only available for the 5G or LTE devices. •...
Page 146: Reassembly
Disassembly and Assembly Reassembly Leaving screws inside the device may damage internal components, such as the battery. During assembly, be extra careful not to leave any unassembled screws inside the device. For the 5G or LTE devices, assemble the separated coaxial cable (Red) to the new speaker module carefully with the tweezers or your fingers.
Page 147 Disassembly and Assembly Using the tweezers, remove all release films of the new speaker module. Place the speaker module to the exact position, and assemble it to the back cover module. Be careful not to damage the near components.
Page 148 Disassembly and Assembly...
Page 149 Disassembly and Assembly For the 5G or LTE devices, carefully connect the coaxial cable (Red) to the back cover module and connect the coaxial cable connector (Red) to the main board. Be careful not to damage the cable while connecting the connector. The coaxial cable (Red) is only available for the 5G or LTE devices.
Page 150 Disassembly and Assembly Check the screw 3570 (5 ea) at the different points and fasten them on the speaker using a cross-head screwdriver. Be careful not to damage the speaker and near components.
Page 151 Disassembly and Assembly Check for the reassembly steps of the Charging Port and completely reassemble the sub PBA and connect the battery connector. Be careful not to damage the battery. Be careful not to damage the battery connector and near components. Reassemble the Bracket Screen...
Page 152: Side Button (Fingerprint Recognition Sensor)
Disassembly and Assembly Side Button (Fingerprint Recognition Sensor) The buttons are already built into the back cover module. Disassemble the • buttons only if the buttons themselves require repairs. The Side button has a built-in fingerprint recognition sensor. It cannot be •...
Page 153 Disassembly and Assembly Check the screws at the 2 different points on the metal bracket and remove them using a cross-head screwdriver. Be careful not to damage the near components. Check the number of screws that have been removed, and store them carefully to make sure that no unassembled screws are left inside the device during assembly.
Page 154 Disassembly and Assembly Using the tweezers, remove the metal bracket from the back cover module.
Page 155 Disassembly and Assembly Using the tweezers, separate the FPCB of Side button module (fingerprint recognition sensor) carefully. Using the tweezers, remove the plastic bracket from the back cover module. The Side button module (fingerprint recognition sensor) is removed together with the bracket. Using the tweezers, remove the water-resistant tape from the plastic bracket and then remove the plastic bracket from the Side button module (fingerprint recognition sensor).
Page 156: Reassembly
Disassembly and Assembly Reassembly Leaving screws inside the device may damage internal components, such as the battery. During assembly, be extra careful not to leave any unassembled screws inside the device. Using the tweezers, remove the release film of the new Side button module. Combine the new plastic bracket with the Side button module carefully.
Page 157 Disassembly and Assembly Using the tweezers or your fingers, grab the Side button module and insert it into the slot carefully. Gently press down softly the Side button module with the tweezers. Be careful not to put the bracket in the wrong direction.
Page 158 Disassembly and Assembly Gently press down the plastic bracket and assemble it completely to the back cover module. Align the Side button FPCB precisely to its position of the back cover module and attach it. Gently press down the FPCB to ensure a secure fit.
Page 159 Disassembly and Assembly Using the tweezers, align the new Side button water-resistant tape precisely on the bracket and attach it. Then, gently press down softly with the tweezers.
Page 160 Disassembly and Assembly Remove the blue release film of the tape.
Page 161 Disassembly and Assembly Using the tweezers, assemble the metal bracket on the back cover module.
Page 162 Disassembly and Assembly Check the screw 3520 (2 ea) at the 2 different points on the metal bracket and fasten them using a cross-head screwdriver. Check for the reassembly steps of the Speaker 1 and completely reassemble main board and VT board and connect the battery connector. Be careful not to damage the battery.
Page 163 Disassembly and Assembly Reassemble the Bracket Screen to complete assembly.
Page 164: Volume Button
Disassembly and Assembly Volume Button The buttons are already built into the back cover module. Disassemble the buttons only if the buttons themselves require repairs. Disassembly To remove the Volume button, lightly press one end of the button with your fingers so that the other end protrudes.
Page 165: Reassembly
Disassembly and Assembly Reassembly Leaving screws inside the device may damage internal components, such as the battery. During assembly, be extra careful not to leave any unassembled screws inside the device. Remove the release film of a new Volume button. The protruding part of the Volume button is biased to one side, so be careful to insert the button in the right direction.
Page 166: Back Cover Module
Disassembly and Assembly Back Cover Module Disassembly Remove the SIM Card Tray, Screen Bracket first before you begin. Using the tweezers, disconnect the battery connector from the main board first. Then, disconnect the coaxial cable connector (white) from the main board and lift the coaxial cable (white) up and separate it from the rear camera module.
Page 167 Disassembly and Assembly...
Page 168 Disassembly and Assembly For the 5G or LTE devices, separate the 4 coaxial cable connectors (Red/Grey/Blue/ Black). Using the tweezers, separate 4 connectors from the main board and remove the screen flex cable completely. Be careful not to damage the cable while removing the connector. •...
Page 169 Disassembly and Assembly...
Page 170 Disassembly and Assembly Check the screw on the main board and the screw on the VT board. Remove all 2 screws using a cross-head screwdriver. Be careful not to damage the near components. Check the number of screws that have been removed, and store them carefully to make sure that no unassembled screws are left inside the device during assembly.
Page 171 Disassembly and Assembly...
Page 172 Disassembly and Assembly Check the 4 screws on the speaker module and remove them using a cross-head screwdriver. Be careful not to damage the speaker module and cables. Check the number of screws that have been removed, and store them carefully to make sure that no unassembled screws are left inside the device during assembly.
Page 173 Disassembly and Assembly Using the tweezers, separate the FPCB of speaker module carefully. Lift up on the separator groove and remove it from the back cover module. Be careful not to damage the speaker module and cables.
Page 174 Disassembly and Assembly Check the screws at the 4 different points on the sub PBA and remove them using a cross-head screwdriver. Be careful not to damage the sub PBA and near components. Check the number of screws that have been removed, and store them carefully to make sure that no unassembled screws are left inside the device during assembly.
Page 175 Disassembly and Assembly Coaxial cable (Grey) Coaxial cable (Blue) Coaxial cable (Black)
Page 176 Disassembly and Assembly...
Page 177 Disassembly and Assembly...
Page 178 Disassembly and Assembly Using the tweezers, disassemble the flex cable connector cover.
Page 179 Disassembly and Assembly Using the tweezers, disconnect the flex cable connector and remove the charging port flex cable completely. Be careful not to damage the cable while removing the connector.
Page 180 Disassembly and Assembly Check the screws at the 2 different points on the charging port and remove them using a cross-head screwdriver. Check the number of screws that have been removed, and store them carefully to make sure that no unassembled screws are left inside the device during assembly.
Page 181 Disassembly and Assembly Using the tweezers, separate the FPCB of the charging port carefully and remove the charging port from the back cover module.
Page 182 Disassembly and Assembly Check the 5 screws on the speaker module and remove them using a cross-head screwdriver. Be careful not to damage the near components. Check the number of screws that have been removed, and store them carefully to make sure that no unassembled screws are left inside the device during assembly.
Page 183 Disassembly and Assembly For the 5G or LTE devices, lift up and separate the coaxial cable (Red) from the back cover module. Using the tweezers, separate the FPCB of speaker module carefully. Using the tweezers, lift up on the separator groove of the speaker module and separate it from the back cover module.
Page 184 Disassembly and Assembly...
Page 185 Disassembly and Assembly Using the tweezers, lift up on the separator groove of the SIM card socket slowly and remove it carefully from the back cover module. Be careful not to damage the SIM card socket.
Page 186 Disassembly and Assembly Check the screw on the antenna PBA and remove it using a cross-head screwdriver. Be careful not to damage the near components. Check the number of screws that have been removed, and store them carefully to make sure that no unassembled screws are left inside the device during assembly.
Page 187 Disassembly and Assembly Using the tweezers, lift up the antenna PBA from the back cover module and remove Be careful not to damage the cable while removing the connector.
Page 188: Reassembly
Disassembly and Assembly Reassembly Leaving screws inside the device may damage internal components, such as the battery. During assembly, be extra careful not to leave any unassembled screws inside the device. Using the tweezers, place the antenna PBA to the exact position, and assemble it to the back cover module.
Page 189 Disassembly and Assembly If you use the existing SIM card socket as it is when reassembling, remove all adhesive tapes on the bottom of the SIM card socket using the tweezers. Be careful not to damage the SIM card socket. Remove the clear film from the new SIM card socket adhesive tape and apply it to the bottom of the SIM card socket.
Page 190 Disassembly and Assembly Using the tweezers, assemble the SIM card socket to the exact position of the back cover module and press it down lightly with your fingers so that it is fully attached. Be careful not to damage the SIM card socket and near components. Place the speaker module to the exact position and assemble it to the back cover module.
Page 191 Disassembly and Assembly For the 5G or LTE devices, carefully connect the coaxial cable (Red) to the back cover module and connect the coaxial cable connector (Red) to the main board. The coaxial cable (Red) is only available for the 5G or LTE devices. •...
Page 192 Disassembly and Assembly Remove the release film of the new charging port. Insert the charging port into the exact position of the back cover module and press down on it in its position softly. Be careful not to damage the charging port and near components. Check the screws 3570 (2 ea) on the charging port module and fasten them using a cross-head screwdriver.
Page 193 Disassembly and Assembly Place the flex cable to the back cover module and connect the connector carefully. Be careful not to damage the cable.
Page 194 Disassembly and Assembly Using the tweezers, place the flex cable connector cover to the exact position, and assemble it to the back cover module. Press down on it in its position smoothly. Place the sub PBA on the back cover module and connect the flex cable connector on the back of sub PBA.
Page 195 Disassembly and Assembly...
Page 196 Disassembly and Assembly...
Page 197 Disassembly and Assembly For the 5G or LTE devices, connect the 3 coaxial cables (Black/Blue/Grey) to the back cover module carefully. Be careful not to damage the near components. • Be careful not to damage the cables. • The 3 coaxial cables (Black/Blue/Grey) are only available for the 5G or LTE •...
Page 198 Disassembly and Assembly Using the tweezers, remove the adhesive tapes on the bottom of the speaker 1 module FPCB. Remove the release film from the new FPCB tape and attach it to the FPCB of speaker 1 module with tweezers. Press the tape with fingers so that it can be attached well. Be careful not to damage the speaker module.
Page 199 Disassembly and Assembly Place the speaker module to the exact position, and assemble it to the back cover module. Be careful not to damage the near components.
Page 200 Disassembly and Assembly Check the screws 3570 (4 ea) and fasten them to the speaker. Be careful to not damage the speaker and near components.
Page 201 Disassembly and Assembly Using the tweezers, place the main board and the VT board to the exact position and assemble it to the back cover module. Press down on it in its position smoothly. Be careful not to damage the cables and near components.
Page 202 Disassembly and Assembly Check the screw 3521 (2 ea) at the different points and fasten them on the main board and VT board using a cross-head screwdriver. Be careful not to damage the near components.
Page 203 Disassembly and Assembly Place the screen flex cable to the back cover module and connect the 4 connectors carefully. Be careful not to damage the main board and near components. • Be careful not to damage the cable while connecting the connectors. •...
Page 204 Disassembly and Assembly For the 5G or LTE devices, connect the 4 coaxial cable connectors (Red/Blue/Grey/ Black). The 4 coaxial cables (Red/Blue/Grey/Black) are only available for the 5G or LTE • devices. The cables and connectors may vary depending on the country, region, or •...
Page 205 Disassembly and Assembly Remove the clear film from the new rear camera adhesive tape and apply it to the rear camera. Press the tape softly so that the tape can be attached well, and remove the release film from the adhesive tape.
Page 206 Disassembly and Assembly Using the tweezers, gently insert the rear camera into the camera hole so that the lens faces backward. Press down softly on the rear camera so that the camera can be completely assembled.
Page 207 Disassembly and Assembly Using the tweezers, connect the rear camera connector and the coaxial cable connector (white) to the main board. Assemble the coaxial cable (white) completely in its position. Connect the battery connector to the main board. Be careful not to damage the battery. Be careful not to damage the battery connector and near components.
Page 208: Battery
Disassembly and Assembly Battery The separate battery may be damaged. Do not use it again. Disassembly Remove the Screen Bracket first before you begin. Using the tweezers, disconnect the battery connector from the main board first. Using the tweezers, disconnect the 2 flex cable connectors from the main board. Then, remove the screen flex cable completely from the back cover module.
Page 209 Disassembly and Assembly...
Page 210 Disassembly and Assembly Using your fingers, hold the tapes (marked as 1, marked as 2, marked as 3) attached to the battery and separate them from the battery in order. Grab the tapes (marked as 2) with your fingers and pull it up one by one carefully. Slowly lift up the battery from the device and remove it completely.
Page 211 Disassembly and Assembly...
Page 212 Disassembly and Assembly...
Page 213 Disassembly and Assembly...
Page 214: Reassembly
Disassembly and Assembly Reassembly Leaving screws inside the device may damage internal components, such as the battery. When assembling, be extra careful not to leave any unassembled screws inside the device. Remove all the remaining adhesive tapes on the back cover module.
Page 215 Disassembly and Assembly Carefully remove all release films from the new battery. Be careful not to damage the battery. Before attaching the battery to the back cover module, connect the battery connector to the main board first. Be careful not to damage the battery. The FPCB cables have to positioned outside so as not to interfere when •...
Page 216 Disassembly and Assembly With the battery connector connected to the main board, assemble the battery in the correct position of the back cover module. Press the battery with your fingers softly so that the battery can be attached well.
Page 217 Disassembly and Assembly Disconnect the battery connector from the main board. Make sure to first disconnect the battery connector for your own safety. • Be careful not to damage the battery. • Be careful not to damage the battery connector and near components.
Page 218 Disassembly and Assembly Now you can press the fully assembled battery using the press fixture. Remove the press fixture body and its handle from the rental tool kit packaging. Keep your hands out of the press fixture to avoid mechanical pinching and injury. This tool is only available to use by the rental of tool kit that contains a •...
Page 219 Disassembly and Assembly Remove the bottom press tray and the battery rubber pads (3 ea) from the rental tool kit packaging. Place the screen facing down, and then place the device on the bottom press tray position.
Page 220 Disassembly and Assembly Choose a top battery-sized pad from the provided battery rubber pads and place it carefully on the top battery. Be careful not to cover the battery rubber pad beyond the battery size. • The FPCB cables have to be positioned outside so as not to interfere when •...
Page 221 Disassembly and Assembly Position the bottom tray with the device lengthwise in the centre of the press fixture so that the top battery is fully placed into the press fixture. The FPCB cables and connectors have to be positioned outside so as not to •...
Page 222 Disassembly and Assembly Rotate the torque limit handle to the clockwise until it makes a sound. In that press state, stay the tray for 5 seconds. Keep your hands out of the press fixture to avoid mechanical pinching and injury. When you reach the required maximum force (1 N), a sound is made from the handle if you turn the handle.
Page 223 Disassembly and Assembly Place the battery rubber pad carefully on the bottom battery. Be careful not to cover the battery rubber pad beyond the battery size. • The FPCB cables have to be positioned outside so as not to interfere when •...
Page 224 Disassembly and Assembly Rotate the torque limit handle to the clockwise until it makes a sound. In that press state, stay the tray for 5 seconds. Keep your hands out of the press fixture to avoid mechanical pinching and injury. When you reach the required maximum force (1 N), a sound is made from the handle if you turn the handle.
Page 225 Disassembly and Assembly When the press is completed after 5 seconds, rotate the torque limit handle to the anticlockwise and remove the tray from the press fixture. The FPCB cables and connectors have to be positioned outside so as not to •...
Page 226 Disassembly and Assembly Place the flex cables to the back cover module and connect the 2 connectors carefully. Be careful not to damage the cable while connecting the connector. • Be careful not to damage the main board and near components. •...
Page 227 Repair Assistant app after repairing and assembling your device. Refer to Calibrations for more information. Visit a Samsung Service Centre when finding some issues from the calibration • results. However, you may incur additional charges if the device has a...
Page 228: Directive 2012/19/Eu Annex Vii Components
Disassembly and Assembly Directive 2012/19/EU Annex VII Components Directive 2012/19/EU Annex VII requirements apply to the following components. Component Samsung Part Name Removal Instructions Printed circuit board Check for the disassembly steps if the surface is Main Board (PBA) of the...
Page 229 This guide is a property of Samsung Electronics Co., Ltd. Any unauthorised use of guide can be punished under applicable international and/or domestic law. © Samsung Electronics Co., Ltd.
Page 230 SENSOR Finger Print Sensor Memory 6 axis (Storage) Magnetic Cover HALL Sensor Wacom HALL Sensor Light #1 IF PMIC Light #2 BATTERY Direct GRIP SENSOR Charger MAIN PMIC AUDIO MAIN MIC BuckBooster 2nd MIC SUB PMIC 3rd MIC SPK Amp Clock IC POWER SPK Amp CAMERA LPAMid No RF for SM‐X520 FRONT CAM TRANSCIEVER LFEMid REAR WIDE CAM BT/WIFI SIM/BT/WIFI/GPS DISPLAY MAIN Display SIM / SD Socket + ...

This manual is also suitable for:

Sm-x526bSm-x528u

Samsung SM-X520 Repair Manual

Quick Links

Need help?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Samsung SM-X520

Summary of Contents for Samsung SM-X520

This manual is also suitable for:

Table of Contents