Samsung SM-F731B Repair Manual
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Samsung SM-F731B Repair Manual

Samsung SM-F731B Repair Manual

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REPAIR GUIDE
SM-F731B
English. Rev.1.0
www.samsung.com

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Summary of Contents for Samsung SM-F731B

  • Page 1 REPAIR GUIDE SM-F731B 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 10 Performing a Factory Data Reset Quality Test Quality Test Using the Samsung Members App Device Diagnostics Test Items Calibrations 26 Calibrations 26 Used Parts and Calibration Functions in Supported Models...
  • Page 3 Table of Contents 42 Speaker Calibration 44 Under-display Camera Calibration (Fold Models Only) 46 Digital Hall Sensor Calibration (Fold and Flip Models Only) Exploded View and Parts List 49 Exploded View 50 Parts List Disassembly and Assembly 52 Tools for Disassembly and Assembly 55 Fasteners (Adhesives and Materials) for Assembly Disassembly for Replacement 58 SIM Card Tray Remove...
  • Page 4 Table of Contents 129 Back Cover Assembly 131 Volume Button Assembly 133 SIM Card Tray Assembly...

  • 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-authorized 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 Center 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 Center. Test Items Function: Check whether your device can read • near field communication (NFC) tags that contain information about products.
  • Page 14 ‒ 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 15 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 16 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 17 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 18 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 19 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 20 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 21 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 22 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 23 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 24 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 25 ‒ 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 26: 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 27: 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 28 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 29 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 30 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 31 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 32: 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 33 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 34 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 35: 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 36 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 37 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 38: 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 39 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 40: 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 41 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 42: 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 43 Calibrations Tap Start. The calibration will perform automatically. Check the calibration result.

  • Page 44: 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 45 Calibrations Tap Start. The calibration will perform automatically. Check the calibration result.

  • Page 46: 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 47 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 48 Calibrations The calibration will perform automatically. Check the calibration result.

  • Page 49: Exploded View And Parts List

    Exploded View and Parts List Exploded View and Parts List The 5G mmWave antenna modules are only supplied with United States devices. • The product’s composition may vary depending on the country, region, or • carrier. Exploded View...

  • Page 50: Parts List

    Exploded View and Parts List Parts List Number Name QCR255 Screw 3487 QCR251 Screw 3506 QCA02 Rear Camera(Ultra Wide) QCA01 Rear Camera(Wide) QRE11 Upper Rear Cover QFR02 Cover Screen QSM01 SIM Card Tray QBR04 Cover Screen Cable Connector Cover QBR02 Upper Metal Plate QCR258 Screw 3442...
  • Page 51 Exploded View and Parts List Number Name QBR03 Side Button(Fingerprint Recognition Sensor) Metal Holder QBR06 5G mmWave Antenna Holder QBC01 Back Cover QFR01 Screen Module...

  • Page 52: 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 53 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 54 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 55: 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 the metal frame GH02-24952A Screws for the bottom...
  • Page 56 Disassembly and Assembly Item Quantity Image Description Screw 3487 Screw for the camera (1 ea) 6001-003487 Front Camera Double sided adhesive Adhesive Tape tape for attaching the front camera to screen module GH81-24007A Metal bracket with adhesive tape to attach the 5G mmWave 5G mmWave antenna to Antenna Module...

  • Page 57: 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 58: 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 59: Volume Button Remove

    Disassembly and Assembly Volume Button Remove The buttons are already included in the screen module. Replace them only if • they need to be repaired. The Side button has a built-in fingerprint recognition sensor. Thus, it cannot be • removed directly from outside. Press one end of the Volume button with your fingers lightly so that the other end protrudes.
  • Page 60 Disassembly and Assembly Grab the Volume button with your fingers and pull out it carefully from the device. After you finish disassembling, refer to Volume Button Assembly for how to reassemble.

  • Page 61: 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 62 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 63 Disassembly and Assembly Slide your 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 internal circuitry can be damaged, do not insert the opening pick more than 3 mm.
  • Page 64 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 65 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 internal circuitry can be damaged, do not insert the opening pick more than 3 mm.
  • Page 66 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.
  • Page 67 Disassembly and Assembly Pull up on the suction cup with strong, steady force to create a gap between the back cover and the frame. 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.
  • Page 68 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 edge.
  • Page 69 Disassembly and Assembly Slide the opening pick back and forth along the top edge to slice through the adhesive. As the internal circuitry can be damaged, do not insert the opening pick more than 3 mm. Lift up the back cover slowly and remove it gently.
  • Page 70 Disassembly and Assembly Remove all adhesive tapes and these tapes are located inside of the back cover ( ). Be careful not to damage the sponge area ( ). • Make sure to remove any residual tape ( ) attached to the inside of the back •...

  • Page 71: Cover Screen Remove

    Disassembly and Assembly Cover Screen Remove When removing the cover screen, ensure that the device is fixed on a flat surface. Heat the microwaveable heating bag and apply it on the left edge of the cover screen for 3 minutes. It is possible for the device or battery to be damaged by heat.
  • Page 72 Disassembly and Assembly Place the suction cup in the center of the left edge of the cover screen, 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 73 Disassembly and Assembly Slide your 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 internal circuitry can be damaged, do not insert the opening pick more than 1–2 mm.
  • Page 74 Disassembly and Assembly Place the suction cup in the center of the bottom edge of the cover screen, and lift upwards while separating it with the opening pick. As the cover screen can be damaged by excessive force, be careful not to damage the cover screen.
  • Page 75 Disassembly and Assembly Heat the microwaveable heating bag additionally and apply it on the right edge of the cover screen for 3 minutes. Place the suction cup in the center of the right edge of the cover screen.
  • Page 76 Disassembly and Assembly Pull up on the suction cup with strong, steady force to create a gap between the cover screen and the frame. 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.
  • Page 77 Disassembly and Assembly Heat the microwaveable heating bag additionally and apply it on the top edge of the cover screen for 3 minutes. Place the suction cup in the center of the top edge of the cover screen, lift upwards, and then insert the opening pick in the gap at the top edge.
  • Page 78 Disassembly and Assembly Slide the opening pick back and forth along the top edge to slice through the adhesive. As the internal circuitry can be damaged, do not insert the opening pick more than 1–2 mm. Lift up the cover screen slowly.
  • Page 79 Disassembly and Assembly Disassemble the cover screen’s FPCB cable connector cover with the tweezers first before removing the cover screen. When removing the cover screen’s FPCB cable connector cover, be careful not to • damage the FPCB cable. The FPCB cable connector cover should be used again when reassembling, so be •...
  • Page 80 Disassembly and Assembly Remove all adhesive tapes and these tapes are located inside of the cover screen ( ). Be careful not to put your fingertips or any foreign objects on the camera and • camera lens ( ). Make sure to remove any residual tape ( ) attached to the inside of the cover •...

  • Page 81: Wireless Charging Module And Bottom Speaker Remove

    Disassembly and Assembly Wireless Charging Module and Bottom Speaker Remove Check and remove the screws at the 2 different points on the bottom metal plate 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 82 Disassembly and Assembly Disconnect the Sub battery connector with the opening pick. 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 near components. Check and remove the screws at the 4 different points on the bottom speaker using a cross-head screwdriver.
  • Page 83 Disassembly and Assembly Using the opening pick, separate the NFC antenna connector. Be careful not to damage the near components.
  • Page 84 Disassembly and Assembly Using the tweezers or opening pick, separate the adhesive tapes of wireless charging module. Be careful not to damage or tear the adhesive parts of the wireless charging • module. Be careful not to damage the near components. •...
  • Page 85 Disassembly and Assembly Using the tweezers, lift up on the bottom center of the speaker module carefully and pull it out from the device carefully. Be careful not to tear any connected components near the wireless charging module. Separate the wireless charging module and speaker module simultaneously from the device.

  • Page 86: Charging Port Remove

    Disassembly and Assembly Charging Port Remove Check the screws at the 2 different points on the charging port 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 87 Disassembly and Assembly After lifting the FPCB cables up carefully, lift up on the separator groove to the upper left of the charging port module using the tweezers or disassembly stick. Then remove it. Be careful not to damage the battery. Be careful not to damage the near components.

  • Page 88: Main Board Remove

    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 screws at the 5 different points on the upper metal plate and remove them using a cross-head screwdriver.
  • Page 89 Disassembly and Assembly Using the tweezers, lift up the top of upper metal plate carefully and separate it from the device. Be careful not to damage the near components. Using the opening pick, disconnect the main battery connector. Make sure to first disconnect the battery connector for your own safety. •...
  • Page 90 Disassembly and Assembly Check the screws at the 2 different points on the upper rear cover and remove them using a cross-head screwdriver. When removing the screws, be careful not to damage the rear cover and PBA. 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 91 Disassembly and Assembly Using the tweezers, lift up on the separator groove to the right corner of the upper rear cover and remove it. Be careful not to damage the PBA. Check the screw on the camera frame and remove it using the cross-head screwdriver.
  • Page 92 Disassembly and Assembly Using the opening pick, disconnect 5 connectors from the main board. Be careful not to damage the PBA and near components.
  • Page 93 Disassembly and Assembly For the United States 5G devices, disconnect the 1 additional 5G mmWave antenna connector. Be careful not to damage the PBA, battery connector, and near components. The 5G mmWave antenna module and its connector are only available in United •...

  • Page 94: Front Camera Remove

    Disassembly and Assembly Front Camera Remove Heat the microwaveable heating bag and apply it to both the front and back side of the front camera module for 3 minutes. It is possible for the device or battery to be damaged by heat. •...
  • Page 95 Disassembly and Assembly Before the heat cools with the heating bag applied, remove the adhesive sponge between the front camera and the screen module using the SIM card tray ejection pin. Be careful not to damage the front camera and near components. •...
  • Page 96 Disassembly and Assembly Remove the front camera carefully by tweezers or your fingers, and leave the camera lens facing up. Be careful not to damage the front camera and near components. After you finish disassembling, refer to Front Camera Assembly for how to reassemble.

  • Page 97: 5G Mmwave Antenna Remove

    Disassembly and Assembly 5G mmWave Antenna Remove The 5G mmWave antenna is only supplied with United States devices. Insert the pointed end of your tweezers in the gap between the edge of the right 5G mmWave antenna and the frame. Pull the 5G mmWave antenna out of its recess until you can grab it with the tweezers or your fingers.
  • Page 98 Disassembly and Assembly Remove the 5G mmWave antenna module. When removing the 5G mmWave antenna module, be careful not to damage it. Separate the 5G mmWave antenna and connector from the metal bracket. While separating the 5G mmWave antenna module, the metal bracket may be bent or damaged.

  • Page 99: Side Button (Fingerprint Recognition Sensor) Remove

    Disassembly and Assembly Side Button (Fingerprint Recognition Sensor) Remove The buttons are already included in the screen module. Replace them only if • they need to be repaired. The Side button has a built-in fingerprint recognition sensor. Thus, it cannot be •...
  • Page 100 Disassembly and Assembly Using the tweezers, remove the metal bracket from the screen module. Be careful not to damage the near components. Using the tweezers, remove the plastic bracket from the screen module. The side button module is removed together with the bracket. After you finish disassembling, refer to Side Button (Fingerprint Recognition Sensor) Assembly...

  • Page 101: 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 102: 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 for the back cover and • front camera. Wear an anti-static wrist strap and connect it to the grounded ESD safe mat. •...

  • Page 103: Preparing A New Screen Module

    Disassembly and Assembly Preparing a New Screen Module Using your fingers, hold the handle of the upper rear protection film attached to the new screen module and remove it. Be careful not to damage the near components. Using the tweezers, remove the camera protection film attached to the new screen module.
  • Page 104 Disassembly and Assembly Using the tweezers or your fingers, remove the upper metal protection film attached to the new screen module. Be careful not to damage the battery and the battery connector. • Be careful not to damage the near components. •...
  • Page 105 Disassembly and Assembly Using your fingers, hold the handle of the lower rear protection film and remove the protection film attached to the new screen module. Be careful not to damage the near components and the battery.
  • Page 106 Disassembly and Assembly Using the tweezers or your fingers, remove the green protection film at the bottom. Be careful not to damage the battery. • Be careful not to damage the near components. •...

  • Page 107: Side Button (Fingerprint Recognition Sensor) Assembly

    Disassembly and Assembly Side Button (Fingerprint Recognition Sensor) Assembly 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. The buttons are already included in the screen module. Replace them only if they need to be repaired.
  • Page 108 Disassembly and Assembly Combine the plastic bracket with the installed side button module carefully and assemble to the screen module. Be careful not to put the bracket in the wrong direction. Using the tweezers, align the new air vent tape precisely at the bottom of bracket and attach it.
  • Page 109 Disassembly and Assembly Using the tweezers, align the new water-resistant tape precisely at the top of bracket and attach it. Using your fingers, gently press down it and remove the blue release film of the tape. Using your tweezers, assemble the metal bracket on the screen module.
  • Page 110 Disassembly and Assembly Check the screw 3442 (2 ea) at the 2 different points of the metal bracket and fasten them using a cross-head screwdriver. Be careful not to damage the battery. Be careful not to damage the near components.

  • Page 111: 5G Mmwave Antenna Assembly

    Disassembly and Assembly 5G mmWave Antenna Assembly 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. The 5G mmWave antenna is only supplied with United States devices. Replace the metal bracket of the 5G antenna module with a new one before reinstalling the left 5G mmWave antenna.
  • Page 112 Disassembly and Assembly Remove the thin adhesive liner on the outside of the metal bracket. Insert the 5G mmWave antenna module in the right slot using the tweezers or your fingers. Press down lightly with your fingers so that the antenna module is fully fitted. Be careful not to damage the battery.

  • Page 113: 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. Using the tweezers, remove the adhesive tape from the front camera hole completely.
  • Page 114 Disassembly and Assembly Using the tweezers, hold the protruding release film of the attached tape and carefully remove it. Place the front camera in the camera hole so that the lens faces forward, and gently insert the front camera with your fingers or the tweezers. Press down softly and evenly on the camera module so that the front camera can be fully inserted.

  • Page 115: 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. The FPCB cables have to positioned outside so as not to interfere when assembling main PBA.
  • Page 116 Disassembly and Assembly Using the tweezers or your fingers, connect 5 connectors on the main board. Be careful not to damage the near components and main board. For the United States 5G devices, using the tweezers or your fingers, connect 1 additional 5G mmWave antenna connector on the main board.
  • Page 117 Disassembly and Assembly Check the screw 3487 (1 ea) and fasten the screw on the camera frame using a cross-head screwdriver. Be careful not to damage the camera lens. Using the tweezers, position the upper rear cover in the correct location and gently press it down to secure it in place until you hear a locking sound.
  • Page 118 Disassembly and Assembly Check the screw 3506 (2 ea) at the 2 different points and fasten the 2 screws to the upper rear cover. Be careful not to damage the cover. Connect the main battery connector to the main board. Be careful not to damage the battery.
  • Page 119 Disassembly and Assembly Using the tweezers or your fingers, assemble the upper metal plate carefully and press down on it in its position. Be careful not to damage the near components. Check the screw 3506 (5 ea) at the 5 different points on the upper metal plate and fasten the 5 screws using the cross-head screwdriver.

  • Page 120: 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, insert the charging port module to the bottom metal frame of device, and press down on it in its position smoothly.
  • Page 121 Disassembly and Assembly Check the screw 3442 (2 ea) at the 2 different points on the charging port and fasten the 2 screws using the cross-head screwdriver. Be careful not to damage the charging port module side contact. Check carefully with your fingers to see if there are any screws or other foreign substances inside the device (battery, PBA, cable, etc.).

  • Page 122: Wireless Charging Module And Bottom Speaker Assembly

    Disassembly and Assembly Wireless Charging Module and Bottom 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. Using the tweezers, assemble the lower part of the speaker module, and press down on it in its position with your fingers until you hear a locking sound.
  • Page 123 Disassembly and Assembly Connect the NFC antenna connector. Insert and fasten the screw 3442 (2 ea) and the black screw 3489 (2 ea) at the 4 different points on the lower speaker module using a cross-head screwdriver.
  • Page 124 Disassembly and Assembly Connect the Sub battery connector. Be careful not to damage the battery connector and near components. Assemble the bottom metal plate. Be careful not to damage the near components.
  • Page 125 Disassembly and Assembly Insert and fasten the black screw 3507 (2 ea) at the 2 different points on the bottom metal plate using a cross-head screwdriver.

  • Page 126: Cover Screen Assembly

    Disassembly and Assembly Cover Screen 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 cover 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 127 Disassembly and Assembly Assemble the cover screen’s FPCB cable connector first. Be careful not to damage the FPCB cable. Assemble the cover screen’s FPCB cable connector cover with your fingers or the tweezers and press down the cover softly. Be careful not to damage the FPCB cable.
  • Page 128 Disassembly and Assembly Attach the cover screen and press down the edges of the cover screen evenly in order to attach it perfectly. Check the gap between cover screen and the metal frame. If you feel the some gap, remove the cover screen and attach it again. Some foreign materials can be inside the device.
  • Page 129 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 130 Disassembly and Assembly Using your fingers or the tweezers, remove all the remaining release film on the back cover. Attach the back cover and press down on the edges of the back cover evenly in order to attach the back cover perfectly. Check the gap between back cover and the metal frame.
  • Page 131 Disassembly and Assembly Volume Button Assembly The buttons are already included in the screen module. Replace them only if they need to be repaired. Remove the release film of new Volume button. Using your fingers, grab the Volume button and insert it on the slot carefully. Be careful not to damage the buttons and device.
  • Page 132 Disassembly and Assembly Press down the Volume button softly and evenly so that the button can be completely assembled. Press the button to make sure it clicks. It should have the same sound and feel as before disassembly.
  • Page 133 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 134 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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