Phone · Samsung · Galaxy A54
Samsung Galaxy A54 Logic Board Repair
Logic Board Repair guide for the Samsung Galaxy A54
Before you begin
Tools
- 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 back cover adhesive precut sticker
- 99% Isopropyl alcohol
Safety
- Wear safety glasses to protect against potential glass fragments when removing the back cover.
- Disconnect the battery before touching or disconnecting any other internal components.
- Handle the lithium-ion battery with care to avoid punctures or bends.
Overview
Step-by-step
- 1
Heat the Back Cover
3 minApply heat around the outer edges of the back panel for 2 to 3 minutes using a heat gun to soften the adhesive.
- 2
Attach Suction Cup
2 minPress a suction cup onto the lower portion of the back panel and pull up firmly to create a slight gap.
- 3
Slice Rear Adhesive
4 minInsert an opening pick into the gap and slowly slide it along all four edges to slice through the adhesive seal.
- 4
Remove Back Panel
2 minCarefully lift the back cover off the chassis and set it aside on your work surface.
- 5
Unscrew Midframe Bracket
4 minRemove the 13 Phillips #00 screws securing the plastic motherboard midframe cover to the body.
- 6
Pry Off Upper Cover
2 minInsert a spudger under the notch on the upper midframe cover and gently pry it off the phone.
- 7
Disconnect Battery Connector
1 minUse a plastic spudger to pop the battery press connector straight up off the logic board.
- 8
Disconnect Interconnect Cables
2 minUnplug the display flex cable and sub-board interconnect cable from their logic board sockets.
- 9
Unplug Antenna Cables
2 minUse fine tweezers to gently pry up the antenna coaxial connectors from the logic board.
- 10
Remove Front Camera
2 minDisconnect the front-facing camera flex connector and pull the camera module out from its housing.
- 11
Eject SIM Tray
1 minInsert a SIM eject pin into the tray hole at the top edge of the frame to remove the SIM tray.
- 12
Unscrew Logic Board
1 minRemove the single Phillips #00 screw anchoring the logic board to the internal aluminum frame.
- 13
Remove Logic Board
3 minGently pry beneath the bottom edge of the logic board with a spudger and lift it out of the chassis.
After your Samsung Galaxy A54 logic board repair
Power the Galaxy A54 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 A54 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 A54 repair context in the encyclopedia, or open related DIY guides.

