Samsung Galaxy A54 5G Motherboard Replacement
Discharging battery below 25% reduces risk of fire during repair.
- Samsung Galaxy A54 5G motherboard connects CPU, sensors, and wireless chips.
- Backup data before removing motherboard to prevent loss.
- If swollen battery is present, take necessary precautions.
Replace adhesive seals when reassembling to maintain water protection.
- Check troubleshooting pages to confirm motherboard replacement is needed.
- Motherboard replacement guide assumes you have discharged battery below 25%.
Step 1 | Back Glass
Completely power off your phone and remove the SIM card holder before disassembling.
- Apply an iOpener to the back cover for at least two minutes on each side of the phone to loosen adhesive.
Use a hair dryer, heat gun, or hot plate with caution — overheating can damage the display and internal battery.
Step 2
Secure a suction handle to the back cover's edge, as close as possible.
If the back cover is cracked, try lifting it with strong tape or superglue the suction handle in place and let it cure.
- Lift the back cover with the suction handle to create a small gap between the cover and frame.
- It may take several attempts; if stuck, apply more heat following iOpener instructions to avoid overheating.
Insert an opening pick into the created gap, then slide it along the phone's side to cut the adhesive. Leave the pick in place to prevent resealing.
Step 3
Insert a second opening pick at the bottom edge.
- Slide it along the side, slicing the adhesive.
- Leave both in place to prevent resealing.
Step 4
Apply heat using your iOpener for 1-2 minutes if adhesive becomes hard to cut.
- Slide a new opening pick along each side of the back cover to slice remaining adhesive.
- Leave an opening pick in place on each side to prevent resealing.
Step 5
Remove the back glass.
Step 6 | Motherboard
Remove the motherboard cover using a Phillips #000 screwdriver.
- There are nine screws to remove, each measuring 4.4 mm long.
Step 7
- Tweezers should be placed under the right edge of the motherboard cover.
- Pry up the motherboard cover with the tweezers.
Step 8
Disconnect the battery cable using a pair of tweezers. Pry the connector straight up from its socket.
Step 9
Use tweezers to pry the interconnect connector straight up from its socket.
Step 10
Remove the screw holding the motherboard in place with a Phillips #000 screwdriver.
Step 11
Use tweezers to disconnect the red and white antennas situated on the right side of the motherboard.
Step 12
- Place tweezers under the motherboard assembly and gently pry it up.
- Once loose, remove the motherboard assembly.