Samsung SM-G981B/DS - Manuals

Usage Notices 5 • 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 assembli...

Usage Notices 6 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

Software Update 7 Software Update Updating Software through FOTA Update your device’s software through the firmware over-the-air (FOTA) service. You can also schedule software updates.Launch the Settings app and tap Software update → Download and install . • Install now : Install updates. • Schedule...

Software Update 9 3 On the devices list, click the device that failed to update the software and check the recovery code. 4 On another computer, launch Smart Switch . 5 Click → Emergency Software Recovery and Reset → Emergency code recovery . 6 Enter the recovery code and click OK . 7 Follow the on-...

Quality Test 11 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 th...

Quality Test 12 3 Tap Test all . The device performs a test on all items.When the test is finished, you can check the test results. • Tick mark: Working normally • Exclamation mark: Needs further inspection • The test proceeds automatically, but you may need to follow the on-screen instructions depe...

Calibrations 25 Calibrations 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...

Calibrations 26 • 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 main and cover scr...

Calibrations 31 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 Assista...

Calibrations 34 8 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. 1 L...

Calibrations 37 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 ...

Calibrations 39 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...

Calibrations 41 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. 1 Launch the Self Repair Assistant app. 2 Select the part that you h...

Calibrations 45 Digital Hall Sensor Calibration (Fold and Flip Models Only) Whenever the screen is replaced, the digital hall sensor must be calibrated to guarantee optimized digital hall sensor performance for devices that have it.Digital hall sensor calibration is available through the Self Repair...

Exploded View and Parts List 48 Exploded View and Parts List Exploded View QRE01 QME04 QME01 QBC01 QCR216 QCR12 QCA01 QCA02 QAR01 QME03 QSM01 QCR232 QMO01QME02QCK01QVO01 QIF01 QSP01 QAN01 QFR01 QCA04

Exploded View and Parts List 49 Parts List Number Name QCR216 Screw 3373 QCA02 Rear Camera(Wide) QCA01 Rear Camera(Ultra Wide) QMO01 Vibrator QME03 Proximity Sensor QCA04 Front Camera QIF01 Charging Assembly QAR01 Speaker Top QME02 Button Flex Cable QVO01 Volume Button QCK01 Power Button QCR232 Scre...

Disassembly and Assembly 50 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 Safety Goggles Prevents accidents during repair (protective equipment) Safety Gloves (...

Disassembly and Assembly 53 Fasteners (Adhesives and Materials) for Assembly Whenever detaching the back cover or front camera for repair, you absolutely must replace the adhesive tapes for the back cover. Item Quantity Image Description Back CoverAdhesive Tape GH81-18120A 1 Double sided adhesive ta...

Disassembly and Assembly 54 Disassembly for Back Cover, Display, and Charging Port Replacement Before disassembling: • Unplug and turn off device before disassembling. • Remove the SIM card tray. It is located to lower side of the device. • Wear an anti-static wrist strap and connect it to the groun...

Disassembly and Assembly 55 SIM Card Tray Remove 1 Prepare the device to repair by yourself. 2 Insert the ejection pin into the hole of the SIM card tray to loosen the tray. Pull out the tray gently from the tray slot. After you finish disassembling, refer to SIM Card Tray Assembly for how to reasse...

Disassembly and Assembly 56 Button Remove The buttons are already included in the screen module. Replace them only if they need to be repaired. 1 Press one end of the Volume button with your fingers lightly so that the other end protrudes. 2 Push the tip of the protruding button up carefully with th...

Disassembly and Assembly 59 Back Cover Remove When removing the back cover, ensure that the device is fixed on a flat surface. 1 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. • Do no...

Disassembly and Assembly 69 Wireless Charging Module and Bottom Speaker Remove 1 Check and remove the screws at the 10 different points. 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. 2 P...

Disassembly and Assembly 72 Charging Port Remove 1 Using the opening pick, pry up and disconnect the first interconnect cable from the main board, then disconnect the first interconnect cable from the charging port.Grab and remove the first interconnect cable from the frame. Be careful not to damage...

Disassembly and Assembly 74 Main Board Remove The PBA can only be replaced at an authorized repair shop. If the PBA is faulty, contact Samsung for further instruction. 1 Using the opening pick, disconnect the last remaining interconnect cable from the board. Be careful not to damage the near compone...

Disassembly and Assembly 78 Front Camera Remove 1 Heat the microwaveable heating bag and apply it to the front side of the front camera module for 3 minutes. • It is possible for the device or battery to be damaged by heat. • Do not heat the device in a microwave. Doing so could cause an explosion. ...

Disassembly and Assembly 80 Proximity Sensor Remove 1 Using the tweezers, lift up on the top and bottom separator grooves to the proximity sensor. • Be careful not to damage the proximity sensor. • Be careful not to damage the near components.

Disassembly and Assembly 82 Vibrator Remove Using the round tip metal tweezers, lift up on the separator groove to the lower of the vibrator, and remove the vibrator.Remove the adhesive and remaining residues. After you finish disassembling, refer to Vibrator Assembly for how to reassemble.

Disassembly and Assembly 83 Display Module The product has been disassembled as far as possible.The display module consists of the display, metal bracket, and battery. As they are bonded to each other, they cannot be separated.

Disassembly and Assembly 84 Reassembly for Back Cover, Display, and Charging Port Replacement Before reassembling: • Remove the adhesive tape residues perfectly. • Prepare all existing screws of this device and adhesive tapes for the back glass and front camera. • Wear an anti-static wrist strap and...

Disassembly and Assembly 86 Vibrator 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. 1 Using the round tip metal tweezers, remove the bottom release film of the new...

Disassembly and Assembly 87 Proximity Sensor Assembly 1 Place the proxomity sensor carefully in the exact position so that the sensor faces forward. • Be careful not to damage the proximity sensor. • Be careful not to damage the near components.

Disassembly and Assembly 91 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. 1 Align the main board module onto the device frame. Make sure to move the fl...

Disassembly and Assembly 94 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. 1 Insert the charging port module to the bottom metal frame of device. Pre...

Disassembly and Assembly 96 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. 1 Connect the battery connector to the main ...

Disassembly and Assembly 98 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...

Disassembly and Assembly 101 Button Assembly The buttons are already included in the screen module. Replace them only if they need to be repaired. 1 Remove the release film of new Volume button. 2 Using your fingers, grab the Volume button and insert it on the slot carefully. Be careful not to damag...

Disassembly and Assembly 104 SIM Card Tray Assembly 1 Insert the SIM card tray. 2 After finishing the last step, ensure that there are no abnormalities. • Check whether the parts or sensors in the device work properly with the Self Repair Assistant app after repairing and assembling your device. Ref...