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Samsung SM-A716 Repair Manual
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Samsung SM-A716 Repair Manual

Samsung SM-A716 Repair Manual

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Galaxy A71 Repair Guide
Samsung Galaxy A71 Repair Guide
SM-A715U
SM-A716

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Summary of Contents for Samsung SM-A716

  • Page 1 Galaxy A71 Repair Guide Samsung Galaxy A71 Repair Guide SM-A715U SM-A716...
  • Page 2 • Disassembly of the Galaxy A71 • Assembly of the Galaxy A71 So how does this help me? This guide will help you perform quality repairs on the Galaxy A71 Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 3 Galaxy A71 Parts Removable Parts of the SM-A716U Galaxy A71 Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 4 The parts include: • Battery Cover • Rear Case • Main PBA • Components • Sub PBA • Battery Confidential Property of Samsung Electronics America, Inc. For Internal Use Only. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 5 Battery Cover tape • o Outer tape bonds the device to the frame NOTE If any of the above fail to function or are damaged they may need to be replaced Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 6 • Middle: NFC antenna • Bottom: Main antenna and speaker • NOTE If any of the above fail to function or are damaged they may need to be replaced Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 7 Finger Print Sensor • Vibrator Motor Receiver Vibrator Motor • Receiver • NOTE If any of the above fail to function or are damaged they may need to be replaced Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 8 Proximity/Light Sensors • Built in Storage • Sub Microphone (Top Side) • NOTE If any of the above fail to function or are damaged they may need to be replaced Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 9 Charging Port and Circuitry • 3.5 mm Head jack • Bottom Microphone • NOTE If any of the above fail to function or are damaged they may need to be replaced. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 10 The Super AMOLED display panel • The Receiver • The Vibrator Motor • NOTE If any of the above fail to function or are damaged they may need to be replaced Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 11 • When handling the Battery, be careful not to puncture or damage the battery NOTE If any of the above fail to function or are damaged they may need to be replaced Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 12 Galaxy A71 Disassembly SM-A716U tear-down guide Galaxy A71 Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 13 • The tools and equipment needed • The steps of disassembly So how does this help me? With this knowledge you will be able to completely disassemble the Galaxy A71. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.

  • Page 14: Tools And Equipment

    To ensure proper disassembly without damage to the device, use the proper tools and equipment: Tweezers Disassembly Stick Torque Driver ESD “Spatula” Stick Anti-static Mat ESD Wrist Strap ESD Wrist Strap Battery Absorber Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 15 Tools and Equipment To ensure proper disassembly without damage to the device, use the proper tools and equipment: Alcohol Pump Bottle 99% Isopropyl Alcohol and AOD Jig Swab Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 16 Speaker Main PBA • o Main Camera o Front Facing Camera Sub PBA • o On-Screen Finger Print Sensor o FPCB Front Assembly • Receiver Vibrator Motor Battery Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 17 Before disassembling the device, the SIM tray must be removed. Insert the SIM removal tool into the SIM eject slot on the top left of • the device and slide the SIM tray out Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 18 In the event of a swollen battery, use 99% Isopropyl Alcohol to • carefully separate and remove the Battery Cover Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 19 Disassembly of the Galaxy Battery Cover Removal Use the AOD to remove the Battery Cover. The Automatic method is preferred to reduce the risk of damage to the rear. Automatic Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 20 If the battery is charged less than 68%, heat to 70°C for 5 minutes o Do NOT heat if the battery is over 80% charged Set the AOD lower to 60°C for 5 minutes • Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 21 Once the AOD vacuum reaches 80 or higher, press Battery Cover • The AOD will heat the device for the set amount of time and begin • lifting Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 22 This will lift the residue from the back • Continue until all residue is removed from the Battery Cover and Rear Assembly NOTE Do not remove single sided tapes. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 23 Remove the screws from the Rear Assembly. • There are a total of 16 screws that hold the Rear Assembly in place • Use the Torque Screwdriver to remove all screws Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 24 Insert a disassembly stick or plastic tweezers in the two • disassembly points to remove the top and the bottom rear case pieces. NOTE The Speaker is located on the inside of the bottom rear case Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 25 The image to the right displays the internal components and circuitry of the Galaxy A71. Before you begin to disassemble, ensure you and your work station are properly grounded. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 26 Disassembly of the Galaxy Disconnecting the Flex Cables from the Main PBA Using the Disassembly Stick: Disconnect the battery flex cable • Disconnect the 2 FCPB • Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 27 Disassembly of the Galaxy Remove the Main PBA screw Using the Torque Screwdriver: Remove 1 screw (Black) located on the Main PBA • Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 28 To remove the Front Facing camera without damage, follow these steps: Using the Disassembly Stick, disconnect the flex cable and remove • the Front Facing Camera Place the Front Facing Camera to the side w/ lens facing up • Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 29 Remove the Main PBA To remove the Main PBA without damage, follow these steps: Using the Disassembly Stick, lift the Main PBA from off of the Front • Assembly Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 30 • cables to remove the Rear Camera module and lay it lens facing up on ESD mat. NOTE When removing camera modules make sure not to touch camera lens Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 31 • Disconnect the Flex Cable from the Sub PBA • Gently lift the Sensor away from the Front Assembly and place it • face up on the ESD mat Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 32 1 screw • Using the Disassembly Stick disconnect 2 flex cables • NOTE Once you disconnected the Orange flex cable you can set it aside on the ESD mat Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 33 To remove the Sub PBA without damage, follow these steps: Using a Disassembly Stick gently lift the Sub PBA from the Assembly • and place on the ESD mat Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 34 Using ESD plastic tip tweezers lift the Vibrator motor from the • Front Assembly NOTE If you are doing an OCTA replacement the vibrator and receiver will come with the new OCTA Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 35 All the alcohol to soak for 30-60 seconds, this will help loosen the • tape Take care not to get any alcohol on the printed text on the Battery • Lift the Battery out using the Battery Absorber • Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 36 Do not hold the Battery by the Flex Connector, as this can • accidentally short the leads When handling the Battery be careful not to puncture or damage the • Battery Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 37 If replacing the Battery, the following must be performed before properly discarding the Battery: Using the Ceramic Scissors, cut the lead from the Battery • o The lead gets sent back as U-Class Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 38 In a repair scenario, only remove as much as required for the repair • Follow proper process and tool usage to avoid damage • With the device disassembled, you can now move on to device assembly. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 39 Galaxy A71 Assembly SM-A716U Assembly Guide Galaxy A71 Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 40 • The tools and equipment needed • The steps of disassembly So how does this help me? With this knowledge you will be able to completely assemble the Galaxy A71 Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 41 To ensure proper assembly without damage to the device, use the proper tools and equipment: Tweezers Disassembly Stick Torque Driver Anti-static Gloves Anti-static Mat Press Jig Device press pad Battery press pads Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 42 Assembly of the Galaxy A71 Rework Kit All tapes separated during disassembly must be replaced. All screws removed during disassembly must be replaced. GH81-18563A Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 43 Battery o Vibrator Motor o Receiver • Sub PBA o Fingerprint Sensor • Main PBA o Rear Camera o Front Facing Camera • Rear Case • Battery Cover Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 44 • Lay the Battery from the top left corner, while making sure the correct side of the Battery is facing up • Firmly press around all four sides of the Battery to ensure it is in place Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 45 • Make sure the proper press wheel is being used for Battery pressing NOTE Do not press for more than 5 secs or w/ the 1N handle, as this can damage the display or battery Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 46 To properly install the Vibrator Motor and Receiver without damage, follow these steps: • Ensure the contact pads are facing the appropriate and gently press both the Receiver Vibrator Motor into place. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 47 • Align the Sub PBA to the Front Assembly and gently press to secure a • Insert and connect Orange flex cable to Sub PBA • Connect the one remaining flex cable • Insert 1 new screw using torque driver Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 48 To install the Fingerprint sensor, perform the following: • Align the Fingerprint sensor onto the front assembly and attach the flex cable to the Sub PBA • Insert 2 new screws using torque driver Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 49 • Ensure that the Camera module is locked in position and aligned properly • Then attach the Macro Cam to the front side of the PBA Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 50 PBA to the Main PBA • Using torque driver insert 1 new black screw • Insert the Front Facing Camera and connect it to the Main PBA • Connect the battery flex cable Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 51 • Insert the top/middle piece that covers the Main PBA and Battery. While inserting this piece you should also feel a slight snap towards the top. • Insert 16 brand new screws Use Torque Screw driver at 1.25kgf.cm  Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 52 • Use the Disassembly Stick to press and secure the tapes into place • Remove the protective vinyl • Lay the Battery cover down on top of the rear case using the camera as a guide Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 53 • Place the device in the appropriate Press Pads and insert into the press jig • If the repair only involved removing the Battery Cover, press for 1 minute with 1N of force Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 54 Once removed from the Press Jig, the device is fully assembled. • Make sure the SIM tray is reinstalled • Perform a final visual inspection of the device • R Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 55 • Run OQC with Galaxy Diagnostics that will include calibration tests: TSP, Speaker, and Optical Fingerprint • Device charged to 100% • Wipe the device clean with microfiber cloth Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 56 Thank you Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.

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Galaxy a71Sm-a716u