Samsung Galaxy A54 5G Daughterboard Replacement

Ensure your phone is completely powered off before disassembly.

• Remove the SIM card holder.

Prepare an iOpener, apply it to the back cover for at least two minutes per side to loosen adhesive.

Alternatively, use a hair dryer, heat gun, or hot plate, but be cautious not to overheat the phone, as display and internal battery may be damaged by excessive heat.

Secure a suction handle to the back cover's edge, as close as possible.

• If the back cover is cracked, attach strong tape or apply superglue for better adhesion.
• Lift the back cover with the suction handle, creating a small gap between the back and frame.

It may take multiple attempts; if needed, reapply heat to soften the adhesive (follow iOpener instructions).

Insert an opening pick into the created gap.

Slide the pick along the phone's side to slice the adhesive. Leave it in place to prevent resealing.

Insert the second opening pick at the bottom edge.

• Slide the pick along the side, slicing the adhesive.
• Leave the picks in place to prevent resealing.

Reheat the iOpener for 1-2 minutes if adhesive is hard to cut.

• Slide a new opening pick along each side of back cover to remove remaining adhesive.
• Leave one opening pick on each side to prevent resealing.

Remove the back glass.

Use a Phillips #000 screwdriver to remove the seven 3 mm-long screws.

• Pry up the daughterboard cover with a spudger or tweezers.
• Remove the daughterboard cover.

Use a tweezers to carefully lift the interconnect cable connectors straight out of their sockets.

• Disconnect the red and white antennas using a pair of tweezers.

Remove the daughterboard screw using a Phillips #000 screwdriver.

Disconnect the fingerprint sensor from the daughterboard using a pair of tweezers.

• Locate and carefully lift the display connector using a spudger or tweezers.
• The mild adhesive holding it in place can be gently pried loose.

Remove the daughterboard using either tweezers or your fingers.