Phone · Samsung · Galaxy S20 FE
Samsung Galaxy S20 FE Logic Board Repair
Logic Board Repair guide for the Samsung Galaxy S20 FE
Before you begin
Tools
- Anti-static wrist strap
- Heat gun or hair dryer
- Suction cup tool
- Plastic prying tools
- Precision screwdriver set (Phillips #00)
- Spudger tool
- Tweezers
- SIM eject tool
Parts / materials
- Replacement Samsung Galaxy S20 FE logic board
- Galaxy S20 FE pre-cut back cover adhesive
- Isopropyl alcohol (99%)
Safety
- Wear an anti-static wrist strap to avoid ESD damage to sensitive board components.
- Wear eye protection when heating and working near glass components.
- Power off the device completely before beginning disassembly.
- Do not puncture, bend, or force tools against the lithium-ion battery.
Overview
Step-by-step
- 1
Remove SIM Card Tray
1 minInsert a SIM eject tool into the pinhole at the top edge of the device. Pull the SIM tray out and set it aside.
- 2
Heat Back Panel Edges
3 minApply a heat gun evenly around the rear cover edges for about two minutes to soften the perimeter adhesive.
- 3
Attach Suction Cup
2 minPlace a suction cup on the lower third of the back cover and pull upward firmly to create a small gap.
- 4
Slice Rear Panel Adhesive
4 minInsert a plastic opening pick into the gap and slide along the outer edges to slice through the adhesive seal.
- 5
Remove Back Glass Panel
1 minLift the back cover off the chassis and set it on your workspace mat.
- 6
Unscrew Upper Midframe Screws
4 minUse a Phillips #00 screwdriver to remove the 15 screws securing the upper wireless charging coil and plastic midframe cover.
- 7
Remove Wireless Charging Midframe
2 minInsert a plastic spudger under the wireless charging coil assembly and lift it up to detach it from the phone frame.
- 8
Disconnect Battery Cable
1 minUse the pointed end of a spudger to pry the battery flex cable connector straight up from the motherboard.
- 9
Disconnect Front Camera
1 minPry up the front-facing camera flex connector using a plastic spudger to disconnect it from the logic board.
- 10
Disconnect Interconnect Cables
2 minDetach the display and sub-board interconnect flex cables from their sockets on the lower portion of the motherboard.
- 11
Disconnect Coaxial Antenna Cables
2 minUse tweezers or a spudger to carefully unclip the blue and white coaxial antenna cables from the board.
- 12
Remove Logic Board Screw
1 minRemove the single Phillips #00 screw securing the logic board to the aluminum frame.
- 13
Lift Out Logic Board
2 minGently lift the logic board out from the top corner of the chassis, ensuring no cables catch on the board.
- 14
Position Replacement Logic Board
2 minLower the replacement logic board into the frame, aligning the camera cutout and mounting holes.
- 15
Secure Board Retention Screw
1 minReinstall the single Phillips #00 screw to lock the new logic board into place.
- 16
Reconnect Flex Cables and Antennae
3 minSnap the display flex, interconnect flex, front camera, antenna cables, and battery connector onto their respective headers.
- 17
Reinstall Upper Midframe Assembly
4 minPlace the wireless charging coil midframe over the motherboard and tighten all 15 Phillips #00 screws.
- 18
Reseal Rear Panel
3 minApply new perimeter adhesive strips, align the back cover over the frame, and press firmly along all edges to seal.
After your Samsung Galaxy S20 FE logic board repair
Power the Galaxy S20 FE 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 FE 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 FE repair context in the encyclopedia, or open related DIY guides.
