Phone · Samsung · Galaxy Z Fold 2 5G
Samsung Galaxy Z Fold 2 5G Logic Board Repair
Logic Board Repair guide for the Samsung Galaxy Z Fold 2 5G
Before you begin
Tools
- Phillips #00 Screwdriver
- Heat gun
- Plastic opening picks
- Spudger
- Precision tweezers
- Soldering iron
Parts / materials
- Isopropyl alcohol (99%)
- Flux
- Desoldering braid
- Back glass adhesive strips
Safety
- Always disconnect all battery connectors before handling logic board components.
- Wear ESD grounding protection to prevent electrostatic discharge damage.
- Work in a well-ventilated area when using soldering equipment and flux chemicals.
Overview
Step-by-step
- 1
Heat the back glass
2 minApply heat along the perimeter of the rear glass cover for two minutes using a heat gun to soften the adhesive.
- 2
Slice the back glass adhesive
3 minInsert an opening pick under the edge of the glass and slide along the frame perimeter to cut through the seal.
- 3
Remove the rear glass cover
1 minGently lift the back glass away from the device chassis and place it on a clean surface.
- 4
Unscrew the motherboard bracket
3 minRemove the ten Phillips #00 screws securing the wireless charging coil and upper motherboard plastic bracket.
- 5
Remove the wireless charging coil
2 minPry up the edges of the wireless charging antenna pad and remove it from the phone.
- 6
Disconnect the battery connectors
2 minUse a plastic spudger to disconnect both battery press connectors from the logic board to kill power.
- 7
Disconnect the display and flex cables
3 minUnplug the display ribbon cable, sub-board interconnect cables, and side-key flex from the motherboard headers.
- 8
Unplug the camera modules
2 minDisconnect the rear camera cluster press connectors and front camera flex from the logic board.
- 9
Remove the logic board screw
1 minUnscrew the single Phillips #00 screw holding the top section of the logic board to the frame.
- 10
Lift out the logic board
2 minCarefully pry the logic board upward from the top edge and lift it clear of the body.
- 11
Perform logic board micro-soldering repair
15 minClean targeted surface components with isopropyl alcohol, apply flux, and resolder faulty board elements using a fine tip.
- 12
Seat the repaired logic board
2 minLower the logic board back into the chassis top-first, ensuring no ribbon cables are pinched underneath.
- 13
Secure the logic board screw
1 minReinstall and tighten the single Phillips #00 screw to lock the motherboard to the frame.
- 14
Reconnect camera modules and flex cables
3 minSnap all camera connectors, display cables, and interconnect flexes back into their respective board sockets.
- 15
Reconnect the battery flexes
1 minFirmly press both battery connectors straight down into their motherboard headers.
- 16
Reinstall the wireless coil assembly
3 minSet the wireless charging plate in place and secure the ten Phillips #00 screws.
- 17
Seal the rear glass panel
4 minApply custom pre-cut adhesive strips to the housing perimeter and firmly press the back glass into place.
After your Samsung Galaxy Z Fold 2 5G logic board repair
Power the Galaxy Z Fold 2 5G 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 Fold 2 5G 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 Fold 2 5G logic board repair at LML Repair in Seattle — same-day options available.
