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Samsung Galaxy A51 5G Repair Manual
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Samsung Galaxy A51 5G Repair Manual

Samsung Galaxy A51 5G Repair Manual

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Samsung Galaxy A51 5G
Repair Guide
SM-A516

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Summary of Contents for Samsung Galaxy A51 5G

  • Page 1 Samsung Galaxy A51 5G Repair Guide SM-A516...
  • Page 2 • Disassembly of Galaxy A51 5G • Assembly of Galaxy A51 5G So how does this help me? This guide will help you perform quality repairs on Galaxy A51 5G devices. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 3 Samsung Galaxy A51 Parts Removable Parts of SM-A516 Samsung Galaxy A51 Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 4 Removable Parts of Galaxy A51 5G Galaxy A51 5G has multiple removable parts. Being able to identify the parts and understand their functions will assist you in the diagnostics and repair of the device. The parts include: • OCTA Assembly •...
  • Page 5 The Battery Cover contains: • Battery Cover Tape NOTE: If any of the above fail to function or are damaged, they need to be replaced. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 6 Case contains parts such as : • Main Antenna • MST/NFC • Speaker NOTE: If any of the above fail to function or are damaged, they need to be replaced. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 7 Main to Sub Front Facing Receiver Rear Camera FCPB Camera NOTE: If any of the above fail to function or are damaged, they 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 need to be replaced. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 9 • I/F Connector (Charging Port) • Main Microphone (Bottom Side) • Headphone Jack NOTE: If any of the above fail to function or are damaged, they need to be replaced. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 10 • The Front Glass and Laminate • Receiver • Battery • Fingerprint Sensor NOTE: If any of the above fail to function or are damaged, they 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 need to be replaced. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 12 Samsung Galaxy A51 Disassembly SM-A516 tear-down guide Samsung Galaxy A51 Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 13 Disassembly of Galaxy A51 5G Taking the device apart In this section we will go over the disassembly of Galaxy A51 5G. This guide will cover: • 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 Galaxy A51 5G.
  • Page 14 Battery Absorber ESD Gloves NOTE: The terms “Tweezers” and “Plastic Tipped ESD Tweezers” are used interchangeably throughout this training. Use ONLY Plastic Tipped ESD Tweezers when performing device repair. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 15 Speaker • Main PBA o Main Camera o Front Facing Camera • Sub PBA o On-Screen Finger Print Sensor o FPCB (2) • Front Assembly Battery Vibrator Motor Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 16 The image to the right displays the internal components and circuitry of Galaxy A51 5G. 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 17 Before disassembling the device, the SIM tray must be removed: Insert the SIM Removal Tool into the SIM eject • slot on the top of the device, and slide the SIM tray out Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 18 Battery to ignite • 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 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 20 • One 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 21 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 tape. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 22 • There are a total of 16 screws that hold the Rear Assembly in place • Use the Torque Screwdriver to remove all screws NOTE: Do not remove black screws that are holding down 5G Modules. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 23 To remove the top piece, insert Tweezers into • the disassembly point to detach it To remove bottom piece, insert Tweezers into • the disassembly point to detach it. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 24 Battery Flex cable • Disconnect the 2 Flex cables • Disconnect 2 5G Modules and Flex cables Use the Torque Screwdriver to remove 1 screw • from the PBA Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 25 • cable and remove the Front Facing Camera • Place the Front Facing Camera to the side with the lens facing up to prevent damage to the Camera lens Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 26 Galaxy A51 5G Remove the Main PBA To remove the Main PBA without damage, follow these steps: Using the Disassembly Stick, lift the Main PBA • from the Front Assembly Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 27 Using the Disassembly Stick, disconnect the Macro Lens and remove it from the front of the Main PBA; place the Macro lens with the lens facing up on the ESD Mat Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 28 Galaxy A51 5G Remove the FPCB To remove the FPCB without damage, follow these steps: Using the Disassembly Stick, disconnect the • FPCB cable, and set it to the side Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 29 To remove the Sub PBA: • Using the Disassembly Stick, disconnect the Fingerprint Flex cable LCD Flex cable Use the Torque Screwdriver to remove • screw from the Sub PBA Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 30 Remove the Sub PBA To remove the Sub PBA without damage, follow these steps: • Using the Disassembly Stick, gently lift the Sub PBA from off of the Front Assembly Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 31 Use Plastic Tipped Tweezers to gently pry from • underneath the Vibrator Motor and remove it from the Front Assembly • Using Tweezers, gently lift the Receiver away from the Front Assembly Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 32 5G modules • Using Tweezers, gently lift each of the 5G Modules away from the Front Assembly; make sure to insert Tweezers only at the disassembly point Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 33 • 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 34 Do not hold the Battery by its 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 35 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 a U-Class Part Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 36 Disassembly of Galaxy A51 5G The device has now been disassembled We have covered the disassembly process of Galaxy A51 5G. At this point all removable components have been removed. Keep in mind: • In a repair scenario, only remove as much as required for the repair Follow proper process and tool usage to avoid damage •...
  • Page 37 Samsung Galaxy A51 Assembly SM-A516 assembly guide Samsung Galaxy A51 Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 38 • 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 Galaxy A51 5G to factory specifications. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 39 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 pads Battery Press pads Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 40 Assembly of Galaxy A51 5G Rework Kit All tapes separated during disassembly must be replaced. All screws removed during disassembly must be replaced. GH81-19279A Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 41 • Front Assembly o Battery o 5G Modules o Vibrator Motor o Receiver • Sub PBA • Main PBA o Main Camera o Front Camera • Rear Assembly • Battery Cover Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 42 • 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 43 • 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 44 • Ensure that the flex cables are still connected to the Modules and place them in their designated locations on the Front Assembly • Insert 4 new screws to secure each Module Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 45 • Lay the Receiver down onto the Front Assembly and ensure that the contacts are facing the correct way Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 46 LCD FPCB and attach the Main to Sub FPCB • Connect the Fingerprint Sensor to the Sub PBA • Use the Torque screwdriver to insert 1 new screws at 1.25kgf·cm Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 47 • Ensure the Camera Module is locked in position and aligned properly • Align the Macro Lens to the front of the PBA and connect the flex cable Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 48 2 5G Module Flex cables • Insert one new black screw o Use the Torque Screwdriver to tighten it to 1.25kgf·cm NOTE: DO NOT connect the Battery FPCB at this time. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 49 Install the Front Facing Camera • Gently place and secure the Front Facing Camera into its slot • Ensure the Camera Module is locked in position and aligned properly Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 50 Assembly of Galaxy A51 5G Connect the Battery • Connect the Battery to the Main PBA Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 51 The Rear Case is installed from Bottom to Top: • Insert the Bottom of the Rear Case first, and snap it into place • Insert the Top/Middle piece; ensure that it also snaps into place Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 52 Assembly of Galaxy A51 5G Install the Rear Assembly • Insert 16 brand new screws: Use Torque Screwdriver at 1.25kgf·cm  Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 53 • Remove the protective vinyl from the Battery Cover tape • Align the Battery Cover over the Rear Assembly from bottom to top using the Camera as your guide Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 54 • Place the device into the appropriate Press Pads and insert the Pads 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 55 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 Once the repair is complete, perform an Outbound Quality Check. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 56 • Update the OS to the latest version • Complete all required calibration tests required for the repair • Charge the device to 100% • Wipe the device clean with a microfiber cloth Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 57 Thank you Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.

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Sm-a516