Phone · Samsung · Galaxy Fold 4G
Samsung Galaxy Fold 4G Battery Replacement
Battery Replacement guide for the Samsung Galaxy Fold 4G
Before you begin
Tools
- Heat gun or hair dryer
- Suction cup tool
- Plastic prying tools
- Precision screwdriver set (Phillips #00)
- Spudger tool
- Tweezers
- Anti-static wrist strap
Parts / materials
- Isopropyl alcohol
- Battery adhesive removal strips
- Pre-cut back cover adhesive gaskets
Safety
- Discharge device battery below 25% before starting repair to prevent thermal runaway
- Wear safety glasses to protect eyes from potential flying glass fragments
- Never use sharp metal tools directly against soft battery pouches
Overview
Step-by-step
- 1
Power Down the Device
1 minPress and hold the power button, then tap Power Off on the screen to completely shut down the Galaxy Fold.
- 2
Heat the Rear Glass Panel
3 minApply a heat gun set to low heat along the edges of the rear glass panel for two minutes to soften the internal adhesive.
- 3
Attach Suction Cup to Rear Glass
2 minPress the suction cup tool near the bottom edge of the rear glass panel and pull upward gently to create a slight gap.
- 4
Slice Rear Glass Adhesive
5 minInsert a plastic prying pick into the gap and slide it slowly along the perimeter to slice through the adhesive seal.
- 5
Remove the Rear Glass Panel
2 minLift the rear glass cover off the frame carefully and place it on a clean workspace surface.
- 6
Heat the Secondary Back Cover
3 minApply heat to the outer display side back panel for two minutes to soften its perimeter adhesive.
- 7
Slice and Remove Secondary Back Panel
5 minInsert a plastic prying pick under the secondary back cover, slide around the edges, and lift the panel away.
- 8
Unscrew the Motherboard Bracket
4 minUse a Phillips #00 screwdriver to remove the screws securing the upper wireless charging coil and motherboard bracket.
- 9
Detach Wireless Charging Assembly
2 minGently lift the plastic wireless charging coil and protective bracket off the motherboard using tweezers.
- 10
Disconnect the Primary Battery
2 minUse the flat end of a plastic spudger to pop the main battery connector straight up off the motherboard socket.
- 11
Unscrew the Lower Speaker Housing
3 minRemove the Phillips #00 screws securing the bottom speaker module and secondary frame guard.
- 12
Disconnect the Secondary Battery
2 minPry up the secondary battery flex cable connector from its socket using a plastic spudger.
- 13
Soak Primary Battery Adhesive
3 minApply a few drops of high-concentration isopropyl alcohol around the edges of the primary battery cell and let it sit for two minutes.
- 14
Pry Out the Primary Battery
5 minInsert a wide plastic prying tool beneath the primary battery and carefully lever it out of the chassis recess.
- 15
Soak Secondary Battery Adhesive
3 minApply isopropyl alcohol around the perimeter of the secondary battery in the opposite housing half.
- 16
Pry Out the Secondary Battery
5 minLever the secondary battery up using a plastic prying tool until it releases from the frame.
- 17
Install Replacement Batteries
4 minApply fresh battery adhesive strips into both battery wells, then press the new replacement batteries firmly into position.
- 18
Reconnect Battery Flex Cables
2 minAlign and press down both battery connectors into their motherboard sockets until they snap firmly into place.
- 19
Reinstall Brackets and Seal Panels
8 minReattach the wireless charging coil, speaker module, and secure all Phillips screws before resealing both back glass panels with new adhesive.
After your Samsung Galaxy Fold 4G battery replacement
Power the Galaxy Fold 4G back on and test the battery replacement 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 Fold 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 Fold 4G battery replacement at LML Repair in Seattle — same-day options available.
