Phone · Samsung · Galaxy S20 Plus
Samsung Galaxy S20 Plus Logic Board Repair
Logic Board Repair guide for the Samsung Galaxy S20 Plus
Before you begin
Tools
- Phillips #00 Screwdriver
- Plastic Opening Tools
- Opening Picks
- Suction Cup
- Heat Gun or iOpener
- Precision Tweezers
- Soldering Iron
- Anti-static Wrist Strap
Parts / materials
- Pre-cut Rear Glass Adhesive Gasket
- Isopropyl Alcohol (90%+)
- Flux
- Desoldering Braid
- Lint-free Wipes
Safety
- Wear eye protection when heating or prying glass panels.
- Disconnect the battery before touching any logic board components to prevent short circuits.
- Work in a well-ventilated space when using flux and solder.
Overview
Step-by-step
- 1
Eject SIM Card Tray
1 minInsert a SIM eject tool into the pinhole on the top edge of the Galaxy S20 Plus. Remove the SIM and microSD card tray completely.
- 2
Heat the Rear Glass
3 minApply a heat gun or heated pad to the outer edges of the glass back cover for two to three minutes to soften the adhesive.
- 3
Slice Rear Adhesive
5 minAttach a suction cup near the bottom edge and pull upward to create a slight gap. Insert an opening pick and slide it around the perimeter to sever the glue.
- 4
Lift Away Rear Glass
2 minGently lift the back glass cover off the frame and set it aside on a clean surface.
- 5
Unscrew Wireless Charging Coil
3 minRemove the five Phillips #00 screws securing the wireless charging coil assembly and top shield to the frame.
- 6
Remove Wireless Charging Pad
2 minPeel the wireless charging sheet and NFC assembly off the speaker box and lift it away from the device.
- 7
Disconnect the Battery Cable
1 minUse a plastic spudger to pry the battery flex cable straight up from its motherboard socket to kill power.
- 8
Disconnect Display and Interconnect Cables
2 minUnplug the main display cable, secondary interconnect cable, and cellular antenna connectors from the logic board.
- 9
Disconnect Front Camera
1 minUnsnap the selfie camera flex connector from the top section of the motherboard.
- 10
Remove Front Camera
2 minCarefully lift the front-facing camera out of its recessed housing in the frame using precision tweezers.
- 11
Unscrew Logic Board Retainer
2 minRemove the single Phillips #00 screw holding the logic board to the inner frame near the top camera module.
- 12
Lift Logic Board Out
3 minGently pry up the bottom edge of the logic board with a spudger and angle it out of the chassis.
- 13
Clean Board Contacts
5 minApply high-concentration isopropyl alcohol with a fine brush or swab to clear corrosion from damaged trace lines or sockets.
- 14
Rework Damaged Solder Joints
10 minApply flux and use a soldering iron with desoldering braid to touch up cold joints or damaged micro-components as needed.
- 15
Position Logic Board
3 minAlign the repaired motherboard with the chassis camera cutouts and carefully lower it into place.
- 16
Reconnect Internal Cables
4 minReinstall the front camera, then snap all display, antenna, and main interconnect cables back into their motherboard sockets.
- 17
Reseal Back Glass
5 minReconnect the battery, screw down the wireless charging coil shield, apply fresh back glass adhesive, and press the cover firm.
After your Samsung Galaxy S20 Plus logic board repair
Power the Galaxy S20 Plus 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 S20 Plus 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 S20 Plus repair context in the encyclopedia, or open related DIY guides.
