Phone · Samsung · Galaxy Note 20 Ultra
Samsung Galaxy Note 20 Ultra Logic Board Repair
Logic Board Repair guide for the Samsung Galaxy Note 20 Ultra
Before you begin
Tools
- Precision screwdriver set
- Plastic opening picks
- Suction cup
- Tweezers
- Heat gun or iOpener
- Soldering iron
- Magnifying glass or headlamp
- Spudger
Parts / materials
- Flux
- Desoldering braid
- Isopropyl alcohol (99%)
- Pre-cut rear glass adhesive sticker
Safety
- Wear safety glasses to protect against flying solder splatters or glass shards.
- Disconnect the battery before performing any repairs on the logic board.
- Work in a well-ventilated area when using flux and soldering tools.
Overview
Step-by-step
- 1
Remove the S Pen
1 minPress the S Pen inward to release the latch, then pull it completely out of the frame.
- 2
Eject the SIM card tray
1 minInsert a SIM eject tool into the hole at the top edge of the phone to pop out the tray.
- 3
Heat the rear glass assembly
3 minApply a heat gun or heated pad to the rear glass perimeter for 2 to 3 minutes to soften the adhesive tape.
- 4
Attach a suction cup
1 minPress a suction cup firmly onto the lower portion of the rear glass near the USB-C port.
- 5
Insert an opening pick
2 minPull up on the suction cup to create a small gap, then slip an opening pick into the seam.
- 6
Slice the perimeter adhesive
4 minSlide opening picks along all four edges of the glass panel to cut through the underlying adhesive.
- 7
Remove the rear glass panel
1 minCarefully lift the rear glass off the chassis and lay it aside on a clean surface.
- 8
Unscrew the top bracket
2 minRemove the five Phillips #00 screws securing the upper plastic cover and wireless charging pad.
- 9
Remove the wireless charging pad
2 minGently peel the wireless charging assembly up and lift it away from the frame.
- 10
Disconnect the battery cable
1 minUse a plastic spudger to snap the battery connector straight up off the motherboard.
- 11
Disconnect the front camera
1 minPry the front camera flex cable directly upward to detach it from the logic board socket.
- 12
Disconnect the interconnect cables
2 minDisconnect the display cable, main interconnect cable, and 5G antenna connectors from the board.
- 13
Remove the motherboard screw
1 minRemove the single Phillips #00 screw securing the logic board near the top left corner.
- 14
Lift out the logic board
2 minCarefully tilt the top of the logic board up and pull it out from the phone chassis.
- 15
Inspect and solder components
10 minPlace the board under magnification, apply flux, and touch up micro-solder connections with a fine-tip iron.
- 16
Reinstall the logic board
2 minAlign the repaired logic board into the frame, press it gently into place, and secure the mounting screw.
After your Samsung Galaxy Note 20 Ultra logic board repair
Power the Galaxy Note 20 Ultra back on and test the logic board repair function before you put every screw away. Check touch/display response, charging, cameras, buttons, and wireless as relevant to this repair. If something fails after closing the device, reopen carefully and reseat the connectors for this Samsung Galaxy Note 20 Ultra job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.
Keep learning
Explore more Samsung Galaxy Note 20 Ultra repair context in the encyclopedia, or open related DIY guides.
