Phone · Samsung · Galaxy Z Flip 4G
Samsung Galaxy Z Flip 4G Logic Board Repair
Logic Board Repair guide for the Samsung Galaxy Z Flip 4G
Before you begin
Tools
- Heat gun or hair dryer
- Phillips #00 screwdriver
- Suction cup tool
- Plastic opening picks
- Spudger tool
- Tweezers
- SIM eject tool
- Anti-static wrist strap
Parts / materials
- Replacement back cover adhesive strips
- Isopropanol (99%)
- Lint-free microfiber cloth
Safety
- Wear protective safety glasses when heating glass panels to protect against potential glass fractures.
- Always disconnect the battery press connector before removing or installing internal micro-electronics.
- Wear an anti-static wrist strap to prevent electrostatic discharge damage to delicate integrated circuits.
Overview
Step-by-step
- 1
Eject the SIM card tray
1 minInsert a SIM eject tool into the small hole on the left edge of the top frame. Push firmly to pop out the SIM tray and remove it.
- 2
Heat the upper glass panel
2 minApply a heat gun set to low temperature around the upper rear glass panel for 2 minutes to soften the underlying adhesive.
- 3
Slice the upper back adhesive
5 minAttach a suction cup to the upper panel, pull gently to create a gap, and insert a plastic pick to slice through the adhesive perimeter.
- 4
Disconnect the sub-display flex cable
2 minSlightly lift the upper glass panel and use a plastic spudger to detach the tiny screen flex connector underneath before removing the glass.
- 5
Heat the lower glass panel
2 minWarm the perimeter of the lower back glass using a heat gun for 2 minutes to weaken its adhesive bond.
- 6
Detach the lower back glass
4 minUse a suction cup and plastic opening pick to carefully separate the lower panel from the chassis, then set it aside.
- 7
Unscrew the motherboard bracket
3 minUse a Phillips #00 screwdriver to remove the 10 screws securing the upper motherboard shield and wireless charging coil.
- 8
Remove the wireless charging assembly
2 minGently pry up the edges of the top shield and lift the wireless charging coil assembly off the board.
- 9
Disconnect the upper battery connector
1 minPry the upper battery press connector straight up from the motherboard using a nylon spudger to cut power.
- 10
Disconnect display and main flex cables
3 minUse a spudger to disconnect the main flexible display cable, sub-board interconnect cable, and side-key ribbon cable from the mainboard.
- 11
Unbolt the main logic board
2 minRemove the remaining Phillips screws anchoring the main logic board to the inner frame.
- 12
Remove the logic board
3 minGrasp the logic board by its edges and carefully lift it out from the upper housing.
- 13
Transfer camera modules
4 minDisconnect the rear camera pair and front camera from the old logic board using a spudger and transfer them to the replacement board.
- 14
Install the replacement logic board
2 minSet the replacement logic board into the upper chassis, ensuring it sits flush without pinching any underlying flex cables.
- 15
Reconnect display and battery cables
3 minPress down on the display, sub-board, and battery flex connectors until they snap securely back onto the new board.
After your Samsung Galaxy Z Flip 4G logic board repair
Power the Galaxy Z Flip 4G 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 Z Flip 4G job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.
Prefer a professional repair?
Book Samsung Galaxy Z Flip 4G logic board repair at LML Repair in Seattle — same-day options available.
