Samsung SM-A256B Repair Manual
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Samsung SM-A256B Repair Manual

Samsung SM-A256B Repair Manual

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REPAIR GUIDE
SM-A256B
SM-A256U
SM-A256U1
English. Rev.1.0
www.samsung.com

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Summary of Contents for Samsung SM-A256B

  • Page 1 REPAIR GUIDE SM-A256B SM-A256U SM-A256U1 English. 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 Performing a Factory Data Reset Quality Test Quality Test Using the Samsung Members App Device Diagnostics Test Items Calibrations 25 Calibrations 25 Used Parts and Calibration Functions in Supported Models...
  • Page 3 Table of Contents 43 Under-display Camera Calibration (Fold Models Only) 45 Digital Hall Sensor Calibration (Fold and Flip Models Only) Exploded View and Parts List 48 Exploded View 49 Parts List Disassembly and Assembly 50 Tools for Disassembly and Assembly 53 Fasteners (Adhesives and Materials) for Assembly 54 Disassembly for Replacement 55 SIM Card Tray Remove...

  • Page 4: Usage Notices

    Precautions for Repair Samsung is not liable for any damage or defect determined to be caused by repair by a non-authorized carrier, self repair or non-professional repair of the device. Samsung...

  • Page 5: 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 6: 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 7: 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 8: 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 9: 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 10 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 11: 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 Center to receive further instruction.

  • Page 12: 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 Center. Test Items Function: Check whether your device can read • near field communication (NFC) tags that contain information about products.
  • Page 13 ‒ FAQ: View frequently asked questions. ‒ History: View your device’s restart history. Official software Function: Check whether the software is working • normally. Provided information • ‒ Status: View whether the feature is working normally. ‒ Service information: View the Samsung Service Center location.
  • Page 14 Quality Test Mobile network Function: Check whether your mobile network is • working normally. Provided information • ‒ Status: View whether the feature is working normally. ‒ Settings: Configure your mobile network settings. ‒ FAQ: View frequently asked questions. Sensors Function: Check whether the sensors are working •...
  • Page 15 Quality Test Touch screen Function: Check whether the touchscreen is • working normally. Provided information • ‒ Status: View whether the feature is working normally. Buttons Function: Check whether the buttons are working • normally. How to check: • Press the buttons by following the directions on the screen.
  • Page 16 Quality Test Speaker Function: Check whether the speakers are • working normally. Provided information • ‒ Status: View whether the feature is working normally. ‒ Speaker types: View the status of each speaker. ‒ FAQ: View frequently asked questions. Vibration Function: Check whether the vibration feature is •...
  • Page 17 Quality Test Camera Function: Check whether the rear and front cameras are working normally. • How to check: • Tap the camera button to test the rear and front cameras. The picture that was taken will be displayed to check the quality of the pictures. Provided information •...
  • Page 18 Quality Test Function: Check whether the microphone is working normally. • How to check: • 1) Tap Record and say something for the recording. 2) When the recording is finished, tap Play and select a button according to the question. Provided information •...
  • Page 19 Quality Test Location accuracy Function: Check whether the location accuracy is • working normally. How to check: • Tap Start. Provided information • ‒ Status: View whether the feature is working normally. ‒ FAQ: View frequently asked questions. The results might be more accurate when you test outside.
  • Page 20 Quality Test Bluetooth Purpose: Check whether Bluetooth can search for • other Bluetooth devices. Provided information • ‒ Status: View whether the feature is working normally. ‒ FAQ: View frequently asked questions. To test this feature, the Bluetooth feature must be activated.
  • Page 21 Quality Test Face recognition Purpose: Check whether the face recognition • sensor is working. How to check: • Look at the screen. Provided information • ‒ Status: View whether the feature is working normally. ‒ FAQ: View frequently asked questions. To test this feature, your face must be registered.
  • Page 22 Quality Test S Pen Purpose: Check whether the S Pen is recognized in all areas of the touchscreen. • How to check: • 1) Tap all the rectangles on the screen with the S Pen. The tapped or dragged rectangles will turn blue. 2) Hover the S Pen over the screen and move from A to B.
  • Page 23 How to check: • Connect a charger to your device. Provided information • ‒ Status: View whether the feature is working normally. ‒ Charging speed: View the charging speed according to the charger you connected. Use only Samsung-approved chargers.
  • Page 24 ‒ Status: View whether the feature is working normally. ‒ Charging speed: View the charging speed according to the wireless charger you put your device on. Use only Samsung-approved wireless chargers. Battery status Function: Check the battery values and analysis. • Provided information •...

  • Page 25: 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 Center for further action. Any malfunctions caused by your repair may incur additional repair charges.

  • Page 26: 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 27 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 28 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 29 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 30 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 31: Optical Fingerprint Sensor Calibration

    Calibrations Optical Fingerprint Sensor Calibration Whenever the screen is replaced, the optical fingerprint sensor must be calibrated to guarantee optimized 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 32 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 33 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 34: 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 35 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 36 Calibrations Scan the QR code or enter the serial number that appears on the battery package. The reset will begin. Check the calibration results.

  • Page 37: 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 optimized. 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 38 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 39: 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 40 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 41: Speaker Calibration

    Calibrations Speaker Calibration When replacing speakers, the speaker must be calibrated to guarantee optimized 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 42 Calibrations Tap Start. The calibration will perform automatically. Check the calibration result.

  • Page 43: 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 optimized 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 44 Calibrations Tap Start. The calibration will perform automatically. Check the calibration result.

  • Page 45: 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 46 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 47 Calibrations The calibration will perform automatically. Check the calibration result.

  • Page 48: 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 49: Parts List

    Exploded View and Parts List Parts List Number Name QCR12 Screw 1530 QCR249 Screw 3420 QCA08 Rear Camera (Macro) QCA06 Rear Camera QCA12 Rear Camera (Ultra Wide) QCA01 Front Camera QSP01 Speaker (Bottom) QFP01 Side Button (Fingerprint Recognition Sensor) QBR01 Side Button (Fingerprint Recognition Sensor) Metal Holder QVO01 Volume Button...

  • Page 50: 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. Tool & Part Code Image Description Prevents accidents during repair Safety Goggles (protective equipment) Safety Gloves (ESD Prevents accidents during repair safe, cut-resistant) (protective equipment)
  • Page 51 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 back Opening Pick cover and other parts Tool for disassembling the Opening Tool...
  • Page 52 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 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 Back Cover Double sided adhesive tape Adhesive Tape for attaching the back cover to metal frame and rear case of the device GH81-24067A...

  • Page 54: Disassembly For Replacement

    Disassembly and Assembly Disassembly for Replacement Before disassembling: Unplug and turn off device before disassembling. • Remove the SIM card tray from the device. • Wear an anti-static wrist strap and connect it to the grounded ESD safe mat. • The product’s composition may vary depending on the country, region, or carrier.

  • Page 55: Sim Card Tray Remove

    Disassembly and Assembly SIM Card Tray Remove 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. After you finish disassembling, refer to SIM Card Tray Assembly for how to...

  • Page 56: Back Cover Remove

    Disassembly and Assembly Back Cover Remove When removing the back cover, ensure that the device is fixed on a flat surface. Heat the microwaveable heating bag and apply it on the left edge of the back cover for 3 minutes. It is possible for the device or battery to be damaged by heat.
  • Page 57 Disassembly and Assembly...
  • Page 58 Disassembly and Assembly Place the suction cup in the center of the left edge of the back cover, and lift upwards while separating it with the opening pick. For separable handle suction cups, be careful not to injure yourself as the handle can be parted during use.
  • Page 59 Disassembly and Assembly Slide the opening pick along the left edge to slice the adhesive. Leave the opening pick in the left edge side to prevent the adhesive from resealing. As the back cover can be damaged by excessive force, be careful not to damage •...
  • Page 60 Disassembly and Assembly Heat the microwaveable heating bag additionally and apply it on the bottom edge of the back cover for 3 minutes. Place the suction cup in the center of the bottom edge of the back cover, and lift upwards while separating it with the opening pick.
  • Page 61 Disassembly and Assembly Place the opening pick in the gap between the back cover and the screen module and increase the gap by pressing up/down/left/right on the bottom sides. Leave the opening pick in the bottom edge to prevent the adhesive from resealing. As the back cover can be damaged by excessive force, be careful not to damage •...
  • Page 62 Disassembly and Assembly Heat the microwaveable heating bag additionally and apply it on the right edge of the back cover for 3 minutes. Place the suction cup in the center of the right edge of the back cover. Pull up on the suction cup with strong, steady force to create a gap between the back cover and the frame.
  • Page 63 Disassembly and Assembly Slide the opening pick back and forth along the right edge to slice through the adhesive. Leave the opening pick inserted in the right edge to prevent the adhesive from resealing. As the back cover can be damaged by excessive force, be careful not to damage •...
  • Page 64 Disassembly and Assembly Heat the microwaveable heating bag additionally and apply it on the top edge of the back cover for 3 minutes. Place the suction cup in the center of the top edge of the back cover, lift upwards, and then insert the opening pick in the gap at the top right edge.
  • Page 65 Disassembly and Assembly Slide the opening pick back and forth along the top edge to slice through the adhesive. As the back cover can be damaged by excessive force, be careful not to damage • the back cover. As the internal circuitry can be damaged, do not insert the opening pick more •...
  • Page 66 Disassembly and Assembly Lift up the back cover slowly and remove it gently.
  • Page 67 Disassembly and Assembly Remove all adhesive tapes on the inside of the back cover ( ). Be careful not to put your fingertips or any foreign objects on the rear cameras • ( ). Make sure to remove any residual tape ( ) attached to the inside of the back •...

  • Page 68: Charging Port Remove

    Disassembly and Assembly Charging Port Remove Using the tweezers, lift up on the separator groove of the camera deco and remove it carefully. Be careful not to damage the camera and camera deco. • Be careful not to damage the near components. •...
  • Page 69 Disassembly and Assembly Check the 15 screws at the 15 different points on the rear 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 70 Disassembly and Assembly Using the opening pick, separate the fingerprint recognition sensor connector from the main board. Be sure to separate the connector. • When removing the connectors, be careful not to damage the cable. • Be careful not to damage the battery and near components. •...
  • Page 71 Disassembly and Assembly Insert the opening pick in the gap between the left edge of rear bracket and the device module, and increase the gap by moving it on the left edge. As the bracket can be damaged by excessive force, be careful not to damage the bracket.
  • Page 72 Disassembly and Assembly Slide the opening pick along the left edge and separate the left edge of rear bracket carefully from the device module. As the bracket can be damaged by excessive force, be careful not to damage the bracket. Insert the opening pick in the gap between the bottom edge of rear bracket and the device module, and increase the gap by moving it on the bottom edge.
  • Page 73 Disassembly and Assembly Slide the opening pick along the bottom edge and separate the bottom edge of rear bracket carefully from the device module. As the device can be damaged by excessive force, be careful not to damage the device.
  • Page 74 Disassembly and Assembly Insert the opening pick in the gap between the right edge of rear bracket and the device module, and increase the gap by moving it on the right edge. As the device can be damaged by excessive force, be careful not to damage the device.
  • Page 75 Disassembly and Assembly Slide the opening pick along the right edge and separate the right edge of rear bracket carefully from the device module. As the device can be damaged by excessive force, be careful not to damage the device. Insert the opening pick in the gap between the top edge of rear bracket and the device module, and increase the gap by moving it on the top edge.
  • Page 76 Disassembly and Assembly Slide the opening pick along the top edge and separate the top edge of rear bracket carefully from the device module. As the device can be damaged by excessive force, be careful not to damage the device.
  • Page 77 Disassembly and Assembly When the rear bracket is completely separated from the device module, lift it up very slowly and carefully. Using the opening pick, separate the battery connector from the main board. Make sure to first disconnect the battery connector for your own safety. •...
  • Page 78 Disassembly and Assembly Check and remove the black screw at the charging port. 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. Separate the 2 flex cable connectors on the charging port using the opening pick.
  • Page 79 Disassembly and Assembly Separate the 2 coaxial cable connectors (Blue/Red) on the charging port using the tweezers or your fingers. When removing the connectors, be careful not to damage the cable. • Be careful not to damage the near components. •...
  • Page 80 Disassembly and Assembly Using the tweezers, lift up on the separator groove of the charging port module, and remove the charging port module carefully. Be careful not to damage the charging port and near components.
  • Page 81 Disassembly and Assembly Using the tweezers, remove the adhesive tape from the charging port module carefully. Be careful not to damage the charging port and near components. After you finish disassembling, refer to Charging Port Assembly for how to reassemble.

  • Page 82: Front Camera Remove

    Disassembly and Assembly Front Camera Remove Disassemble the camera only if the camera requires repairs. • Separate and replace only the problematic camera. • Using the opening pick, separate the front camera connector carefully from the main board. Be careful not to touch the camera lens while removing the camera. •...
  • Page 83 Disassembly and Assembly Remove the front camera carefully using the tweezers, and leave the camera lens facing up. Be careful not to touch the camera lens while removing the camera. • Be careful not to damage the camera and the near components. •...

  • Page 84: Main Board Remove

    Disassembly and Assembly Main Board Remove The PBA can only be replaced at an authorized repair shop. If the PBA is faulty, contact Samsung for further instruction. Check the black screw at the main board and remove it using a cross-head screwdriver.
  • Page 85 Disassembly and Assembly Using the opening pick, separate the flex cable connector from the main board and remove the flex cable. Be careful not to damage the main board and near components.
  • Page 86 Disassembly and Assembly Using the tweezers or your fingers, separate the 2 coaxial cable connectors (Blue/ Red) from the main board and remove the 2 cables completely from the device. Be careful not to damage the cable and near components.
  • Page 87 Disassembly and Assembly Using the tweezers, lift up on the separator groove of the main board and remove it carefully. Be careful not to damage the battery. Be careful not to damage the main board. • Be careful not to damage the near components and cables. •...

  • Page 88: Speaker Remove

    Disassembly and Assembly Speaker Remove The speakers are already pre-installed in the rear bracket (bottom speaker) and the screen module (top speaker). Disassemble the speakers only if the speaker module itself requires repair. Using the tweezers, lift up on the separator groove of the bottom speaker on the rear bracket and remove it carefully.
  • Page 89 Disassembly and Assembly Using the tweezers, lift up on the separator groove of the top speaker on the screen module and remove it carefully. Be careful not to damage the speaker and the near components. Remove the adhesive tape on the top speaker position. Be careful not to damage the near components.

  • Page 90: Vibrator Motor Remove

    Disassembly and Assembly Vibrator Motor Remove Using the tweezers, lift up on the separator groove of the vibrator motor and remove it carefully from the screen module. Be careful not to damage the vibrator motor. Remove the adhesive tape on the bottom of the vibrator motor. Be careful not to damage the vibrator motor.

  • Page 91: Button Remove

    Disassembly and Assembly Button Remove The buttons are already pre-installed in the rear bracket. Disassemble the • buttons only if the buttons themselves require repairs. The Side button has a built-in fingerprint recognition sensor. • Lightly push the Volume button from the outside to the inside with your fingers. Using the tweezers, grab the protruding Volume button carefully and pull it out from the inside of rear bracket.
  • Page 92 Disassembly and Assembly Using the tweezers, grab the metal bracket for Side button module and separate each end of it carefully. Be careful not to damage or scratch the bracket.
  • Page 93 Disassembly and Assembly Using the tweezers, grab the Side button module and separate it from the rear bracket. Be careful not to damage or scratch the bracket. After you finish disassembling, refer to Button Assembly for how to reassemble.

  • Page 94: Screen Module

    Disassembly and Assembly Screen Module The screen module consists of the screen, metal bracket, and battery. As they are bonded to each other, they cannot be separated.

  • Page 95: Reassembly For Replacement

    Disassembly and Assembly Reassembly for Replacement Before reassembling: Remove the adhesive tape residues perfectly. • Prepare all existing screws of this device and adhesive tapes. • Wear an anti-static wrist strap and connect it to the grounded ESD safe mat. •...

  • Page 96: Button Assembly

    Disassembly and Assembly Button Assembly The buttons are already pre-installed in the rear bracket. Disassemble the • buttons only if the buttons themselves require repairs. The Side button has a built-in fingerprint recognition sensor. • Remove the release film from new Side button module. Using the tweezers, grab the Side button module and insert it to the rear bracket carefully.
  • Page 97 Disassembly and Assembly Remove the release film from new metal bracket for Side button module. Using the tweezers, grab the new metal bracket and assemble each end of it exactly to the rear bracket. Be careful not to damage or scratch the bracket. •...
  • Page 98 Disassembly and Assembly Push the Volume button from inside so that the button can be completely assembled. When inserting the Volume button with the tweezers, be very careful not to damage or scratch the bracket.

  • Page 99: Vibrator Motor Assembly

    Disassembly and Assembly Vibrator Motor Assembly Remove the clear film from new vibrator motor adhesive tape (1 ea) and apply it to the bottom of the vibrator motor. Remove the release film from the adhesive tape. Be careful not to damage the vibrator motor.
  • Page 100 Disassembly and Assembly Using your fingers or the tweezers, assemble the vibrator motor to the exact position of the screen module and press it with your fingers softly. Be careful not to damage the vibrator motor and near components.

  • Page 101: Speaker Assembly

    Disassembly and Assembly Speaker Assembly 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. The speakers are already pre-installed in the rear bracket (bottom speaker) and the screen module (top speaker).
  • Page 102 Disassembly and Assembly Remove the clear film from the bottom speaker and assemble it to the exact position of the rear bracket using your fingers or the tweezers. Be careful not to damage the speaker and near components. Press the bottom speaker with your fingers softly so that the speaker can be assembled well.

  • Page 103: Main Board Assembly

    Disassembly and Assembly Main Board Assembly 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. Align the main board module onto the device frame. Make sure to move the flex cables out of the way to ensure that it lies flush (flat) in its place.
  • Page 104 Disassembly and Assembly Using the tweezers or your fingers, assemble the coaxial cables (Red/Blue) to the screen module and connect each connector to the main board. Be careful not to damage the cable and near components.
  • Page 105 Disassembly and Assembly Using the tweezers or your fingers, assemble the flex cable and connect the connector to the main board. Be careful not to damage the battery. Be careful not to damage the main board and near components.
  • Page 106 Disassembly and Assembly Check the black screw 1530 (1 ea) and fasten the screw on the main board using a cross-head screwdriver. Be careful not to damage the main board and near components.

  • Page 107: Front Camera Assembly

    Disassembly and Assembly Front Camera Assembly 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. Disassemble the camera only if the camera requires repairs. •...
  • Page 108 Disassembly and Assembly Connect the front camera connector carefully. Be careful not to damage the camera lens and near components. • Be careful not to damage the main board. • Be careful not to damage and scratch the camera module. •...

  • Page 109: Charging Port Assembly

    Disassembly and Assembly Charging Port Assembly 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 the clear film from the new screen module connector adhesive tape and apply it to the charging port module.
  • Page 110 Disassembly and Assembly Using the tweezers, insert the charging port module to the bottom metal frame of device and press down on it in its position smoothly. While inserting the charging port module, hold the screen module connector • using your fingers and keep it open. Be careful not to damage the charging port and the near components.
  • Page 111 Disassembly and Assembly Connect the 2 flex cable connectors and the 2 coaxial cable connectors (Blue/Red) to the charging port with the tweezers or your fingers. Be careful not to damage the charging port and near components. • When connecting the connector, be careful not to damage the cable. •...
  • Page 112 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. •...
  • Page 113 Disassembly and Assembly Attach the rear bracket carefully from the bottom. As the bracket can be damaged by excessive force, be careful not to damage the bracket.
  • Page 114 Disassembly and Assembly Push down all edges of the rear bracket with your fingers softly and evenly so that the rear bracket can be assembled perfectly. Be careful not to damage the battery and near components. As the bracket can be damaged by excessive force, be careful not to damage the bracket.
  • Page 115 Disassembly and Assembly Connect the fingerprint recognition sensor connector to the main board. Be sure to connect the connector. • Be careful not to damage the battery and near components. • Check the screw 3420 (15 ea) at the 15 different points on the rear bracket and fasten them.
  • Page 116 Disassembly and Assembly Using the tweezers, assemble the camera deco carefully. Be careful not to damage the camera and camera deco. • Be careful not to damage the camera lens. • Be careful not to damage the near components. • Push down the camera deco softly with your fingers so that it can be assembled well.
  • Page 117 Disassembly and Assembly Check carefully with your fingers to see if there are any screws or other foreign substances inside the device (battery, PBA, cable, etc.). Shake the device lightly with the back of the device facing down to remove any remaining screws.

  • Page 118: Back Cover Assembly

    Disassembly and Assembly Back Cover Assembly 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 back cover, 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 119 Disassembly and Assembly Using your fingers, remove all the remaining release films from the back cover. Attach the back cover and press down on the edges of the back cover. Check the gap between the back cover and the metal frame. If you feel the some gap, remove the back cover and attach it again.
  • Page 120 Disassembly and Assembly Press down the edges of the back cover evenly in order to attach the back cover perfectly.

  • Page 121: Sim Card Tray Assembly

    Repair Assistant app after repairing and assembling your device. Refer to Calibrations for more information. Visit a Samsung Service Center when finding some issues from the calibration • results. However, you may incur additional charges if the device has a...
  • Page 122 This guide is a property of Samsung Electronics Co., Ltd. Any unauthorized use of guide can be punished under applicable international and/or domestic law. © Samsung Electronics Co., Ltd.

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