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Samsung Galaxy S20 Ultra 5G Repair Manual
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Samsung Galaxy S20 Ultra 5G Repair Manual

Samsung Galaxy S20 Ultra 5G Repair Manual

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Galaxy S20 Ultra 5G Repair Guide
SM-G988U

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Summary of Contents for Samsung Galaxy S20 Ultra 5G

  • Page 1 Galaxy S20 Ultra 5G Repair Guide SM-G988U...
  • Page 2 • Disassembly of the Galaxy S20 Ultra 5G • Assembly of the Galaxy S20 Ultra 5G So how does this help me? This guide will help you perform quality repairs on the Galaxy S20 Ultra Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 3 Introducing Galaxy S20 Ultra 5G SM-G988U Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 4 Galaxy S20 Ultra 5G Parts Removable Parts of the SM-G988U Galaxy S20 Ultra 5G Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 5 The parts include: • OCTA Assembly • Main PBA • Sub PBA • mmWave Modules • Components • Rear Assembly • Battery • Back Glass Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 6 The Back Glass contains: • Back Glass tape Inner Outer 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 Bottom: Speaker and NFC pad Stainless steel is a metal alloy made of chromium and nickel. Sometimes, it is referred to as SUS, an acronym from Fun Fact: Japanese Industrial Standards (JIS). Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 8 Vibrator Motor Assembly kits. The Receiver is preinstalled on new Front Assembly kits. 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 • Built in Storage • Sub Microphone (Top Side) • IMEI QR Code label 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 NOTE: If any of the above fail to function or are damaged, they need to be replaced; if the I/F Connector is damaged, the Sub PBA needs to be replaced. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 11 • The FPCB and Flex connector • The Front Glass and Laminate • Receiver • 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 • 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 13 Galaxy S20 Ultra 5G Disassembly SM-G988U tear-down guide Galaxy S20 Ultra 5G Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 14 • 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 S20 Ultra 5G. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.

  • Page 15: Tools And Equipment

    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 16 Tools and Equipment To ensure proper disassembly without damage to the device, use the proper tools and equipment: Alcohol Pump Bottle and 99% Center Rubber Vacuum Seal AOD Jig Isopropyl Alcohol Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 17 • Parts on the Bracket o Vibrator Motor and Receiver • Battery • mmWave Modules 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 18 SIM tray out NOTE: Failure to remove the SIM tray will result in damaged internal components, such as the Main PBA. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 19 Battery to ignite • In the event of a swollen Battery, use 99% Isopropyl Alcohol to carefully separate and remove the Back Glass Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 20 Galaxy S20 Ultra 5G Back Glass Removal The Automatic OCTA Disassembler is required to remove the Back Glass. Automatic NOTE: Failure to use the AOD will result in device damage. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 21 60°C and lower to 60°C for 5 minutes NOTE: If state of charge can not be identified, assume that the SOC is 68% or higher and heat under 60°C for 5min Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 22 • Close the lid and press Vacuum to create suction • Once the AOD vacuum reaches 80 or higher, press Back Glass • 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 23 Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 24 • DO NOT remove the one-sided tape For better and faster results, place the Back Glass on the hot plate for heat, and use roller and tape to remove adhesive Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 25 Galaxy S20 Ultra 5G Precautions are required Before you begin to disassemble, ensure you and your workstation are properly grounded. NOTE: Use Dust Protecting Tape to protect camera lens during repair Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 26 Galaxy S20 Ultra 5G Remove the Rear Assembly Remove the screws from the Rear Assembly. • 16 screws on the Galaxy S20 Ultra 5G will need to be removed from the Rear Assembly • Galaxy S20 Ultra 5G is a millimeter wave (mmWave) 5G device.
  • Page 27 3. Flip the Speaker and NFC Pad over to reveal a hidden screw; remove the screw 4. Using the Tweezers, remove the top Antenna Assembly and SUS Metal Plate Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 28 Disassembly of the Galaxy S20 Ultra 5G Remove the Main PBA • Using the Disassembly Stick, disconnect the Battery Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 29 Disassembly of the Galaxy S20 Ultra 5G Remove the Main PBA • Disconnect the 4 FPCB Connectors • Disconnect 2 mmWave Module FPCB Connectors Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 30 Disassembly of the Galaxy S20 Ultra 5G Remove the Main PBA • Disconnect the Front Facing Camera’s flex connector, but DO NOT remove the Camera module Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 31 • Lift the Main PBA from the top of the Bracket o Insert the Disassembly Stick into the Disassembly Point, and gently lift the Main PBA out of the Bracket Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 32 ESD damage Wide Tele NOTE: Only remove the main camera if main camera requires replacement; do not disassemble the module unless an individual piece of the module requires replacement. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 33 Disassembly of the Galaxy S20 Ultra 5G Remove the Sub PBA • Disconnect the USB to Main PBA connector o Place cable to the side Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 34 • Remove the 3 screws from the Sub PBA • Discard the screws • Removed screws cannot be reused NOTE: Reusing screws can have a negative impact on water resistance, and cause WRT to fail. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 35 Disassembly of the Galaxy S20 Ultra 5G Remove the Sub PBA • Insert the Disassembly Stick into the Disassembly Point and gently remove the Sub PBA Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 36 Disassembly of the Galaxy S20 Ultra 5G Remove Vibrator Motor • Use the Plastic Tipped ESD Tweezers to carefully remove the Vibrator Motor Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 37 Disassembly of the Galaxy S20 Ultra 5G Removing mmWave Modules Galaxy S20 Ultra 5G is a 5G device that utilizes millimeter wave (mmWave) technology. To safely remove the 2 modules, follow these steps: Remove 4 screws that hold the modules in place •...
  • Page 38 • Take care not to get any alcohol on the printed text on the Battery • Lift the Battery out using the Battery Absorber NOTE: Use only 99% Isopropyl Alcohol. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 39 • Recycle the Battery using the process outlined in Standard Operating Procedures (SOPs) NOTE: Using metal scissors to cut Battery leads can cause a short in the leads, which can lead to thermal events and injury. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 40 • Main Display • Front Facing Camera • Receiver • Batteries These parts cannot be reused; only the batteries should be removed for U-Class lead returns and Battery recycling. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 41 Disassembly of the Galaxy S20 Ultra 5G The device has now been disassembled We have covered the disassembly process of the Galaxy S20 Ultra 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 •...
  • Page 42 Galaxy S20 Ultra 5G Assembly SM-G988U Assembly Guide Galaxy S20 Ultra 5G Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 43 Assembly of the Galaxy S20 Ultra Putting it all back together In this section we will go over the reassembly of the Galaxy S20 Ultra 5G. This guide will cover: • The tools and equipment needed • The steps of reassembly So how does this help me? With this knowledge, you will be able to completely reassemble the Galaxy S20 Ultra 5G.
  • Page 44 Device Press Pads Battery Press Pads 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 45 Resistance using Mic and Cam GH02-07406A Mic sealing tape sealing tapes 3.5mm Screws for Rear(14) & 6001-003373 Blue or Camera(2) Green resin 3.2mm Screws for Sub-PBA (3) 6001-003396 Yellow resin Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 46 ToF (White) GH81-18196A Part Code GH81-18496A (JIG) Rear CAM GH02-20470A Window tape ToF CAM BTM tape GH81-18431A UW CAM tape GH81-18432A Front Camera Tape GH81-18460A Motor Attach Tape GH81-16726A Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 47 • Parts on the Bracket o Vibrator, Receiver, Front Camera • Parts on the Main PBA o Main Camera • PBA o Main PBA, Sub PBA • Rear Case • Back Glass Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 48 • Lay the Battery from the top left corner, while making sure the correct side of the Battery is facing up • Firmly press all four sides of the Battery to ensure it is in place Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 49 • Make sure the proper Press Wheel is being used for Battery pressing NOTE: Do not press for more than 5 secs or with the 1N handle, as this can damage the Display or Battery. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 50 Assembly of the Galaxy S20 Ultra 5G Install the Vibrator Motor into the Bracket With the Battery installed, component installation can begin. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 51 • Ensure the contact pads are facing the appropriate direction and are not bent between the Motor and Bracket • Once aligned, press down using your thumbs for (1) second to attach the Motor Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 52 Installing the Sub PBA • Begin by firmly inserting the I/F Port FIRST into the Bracket o Ensure a firm fit • Gently insert the rest of the Sub PBA Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 53 • Ensure the Camera module is aligned properly Ultra Wide and locked in position Wide Tele NOTE: Do not attempt to use brushes or cotton swabs to clean the Camera lens. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 54 • Start by aligning the Main PBA with the Bracket • To reduce the risk of damage to components or connectors, loosen all connectors before placing the Main PBA into the Bracket Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 55 • Once the Main PBA has been inserted, connect the 4 flex cables to the Main PBA • Connect the Front Camera to the Main PBA • Do not connect the Battery yet Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 56 Assembly of the Galaxy S20 Ultra 5G Connecting the Sub PBA • Connect the 2 flex cables to the Sub PBA Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 57 • Using the Torque Screwdriver, insert 3 Sub PBA screws • Tighten the screws to the specified torque force: - Torque force : 1.3 kgf·㎠ ± 0.07 - Screw Specification : 1.4 * 3.2, Silver Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 58 To replace and reinstall the module, disconnect it from Main PBA and then attach the new module to the Main PBA. NOTE: mmWave Calibration is required when transferring/replacing modules or when the Main PBA is being replaced. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 59 Assembly of the Galaxy S20 Ultra 5G Power the Main PBA • Connect the Battery to the Main PBA Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 60 NOTE: Do not attempt to install these components in any other order or using any other method, as this may result in DIP to the components, the connectors, or the PBAs in the device. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 61 NOTE: Do not attempt to install these components in any other order or using any other method, as this may result in DIP to the components, the connectors, or the PBAs in the device. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 62 NOTE: Do not attempt to install these components in any other order or using any other method, as this may result in DIP to the components, the connectors, or the PBAs in the device. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 63 NOTE: Do not attempt to install these components in any other order or using any other method, as this may result in DIP to the components, the connectors, or the PBAs in the device. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 64 • Tighten the screws to the specified torque force : - Torque force : 1.3 kgf·㎠ ± 7% - Screw Specification : 1.4 * 3.5, Silver NOTE: New screws should be used EVERY TIME assembly is completed. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 65 • Remove the protective vinyl and gently attach the Back Glass • Gently press with your fingers to secure Back Glass NOTE: Tapes must be properly aligned to ensure a water resistant seal on the device. Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 66 Press the device in the Press Jig: • Place the device in the appropriate Press Pads and insert into the Press Jig • Press for 1 minute with 1N of force Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 67 • Perform a final visual inspection of the device Once the repair is complete, perform Calibrations and Outbound Quality Checks: • TSP Calibration Speaker Calibration • • ToF Calibration • mmWave RF Calibration Multi Camera Calibration • Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 68 • Update the device to the newest firmware • Charge the device to 100% (using fast charging) • Wipe the device clean with a microfiber cloth so there are no fingerprints or debris Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.
  • Page 69 Thank you Confidential Property of Samsung Electronics America, Inc. For Internal Use Only.

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