Samsung SM-S918B/DS - Repair Manual

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 • 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

Exploded View and Parts List 49 Parts List Number Name QCR252 Screw 3428 QCR257 Screw 3489 QME04 Main Flex Cable 1 (Sub PBA to PBA) QBC01 Back Cover QST01 S Pen QSP02 Speaker(Bottom) QCA03 Rear Camera(Ultra Wide) QCA05 Rear Camera(Wide) QCA02 Rear Camera(Telephoto 10x) QCA01 Rear Camera(Telephoto 3x...

Disassembly and Assembly 51 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 54 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 CoverAdhesive Tape GH81-23177A 1 Double sided adhesive tape for attaching the back cover to...

Disassembly and Assembly 56 Disassembly for Replacement Before disassembling: • Unplug and turn off device before disassembling. • Remove the SIM card tray and S Pen from the device. • Wear an anti-static wrist strap and connect it to the grounded ESD safe mat. • The product’s composition may vary d...

Disassembly and Assembly 57 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 and pull out the tray gently from the tray slot. After you finish disassembling, refer to SIM Card Tray Assembly for how to rea...

Disassembly and Assembly 58 S Pen Remove 1 Press the end of the S Pen to disengage it. 2 Pull out the S Pen from the slot. After you finish disassembling, refer to S Pen Assembly for how to reassemble.

Disassembly and Assembly 59 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 62 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 72 Wireless Charging Module and Bottom Speaker Remove 1 Check and remove the screws at the 11 different points at the top and bottom of the device using a cross-head screwdriver. Check the number of screws that have been removed, and store them carefully to make sure that no...

Disassembly and Assembly 76 Charging Port Remove 1 Disconnect the battery connector from the main board with the opening pick. • Make sure to first disconnect the battery connector for your own safety. • Be careful not to damage the battery.

Disassembly and Assembly 79 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 Disconnect the remaining interconnect cable from the main board and frame using the opening pick or disassembly stick. Be careful ...

Disassembly and Assembly 84 Front Camera Remove 1 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. • Do not heat the device in a microwave. Doing so could cause ...

Disassembly and Assembly 87 5G mmWave Antenna Remove The 5G mmWave antenna is only supplied with United States devices. 1 Check the screws at the 2 different points on the left 5G mmWave antenna module and remove them using a cross-head screwdriver. When removing the screws, be careful not to damage...

Disassembly and Assembly 91 Screen Module The screen module consists of the screen, metal bracket, and battery. As they are bonded to each other, they cannot be separated.

Disassembly and Assembly 92 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 ma...

Disassembly and Assembly 97 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. 1 Using the tweezers, remove the adhesive tape from the front camera hole c...

Disassembly and Assembly 100 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 f...

Disassembly and Assembly 105 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 Using the tweezers, insert the charging port module to the bottom metal...

Disassembly and Assembly 108 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 Using the tweezers, assemble the lower pa...

Disassembly and Assembly 113 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 116 S Pen Assembly Insert the S Pen into the slot and push it in its position.

Disassembly and Assembly 117 SIM Card Tray Assembly 1 Insert the SIM card tray back into the slot and push it in its position. 2 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 ...