Samsung Galaxy S20 FE 5G Motherboard Replacement

Ensure the battery is drained to 25% or lower to prevent accidental puncture.

• Power button: Press and hold to shut down the device.
• Disconnect all cables.

Careful not to insert the SIM eject tool into a microphone hole.

• Firmly press a SIM eject tool or straightened paper clip into the SIM card tray hole until it ejects.
• Remove the ejected SIM card tray.
• If accidentally inserted into a microphone hole, proceed with caution as no damage is likely to have occurred.

Extreme heat may warp the back cover; use with caution.

• Apply an iOpener to the bottom edge of the back cover for two minutes.
• Alternatively, use a hair dryer on low heat, but be extremely cautious not to damage the back cover.

Apply a suction cup to the center of the back cover's bottom edge, as close to the edge as possible.

• Pull up on the suction handle with strong, steady force to create a gap between the cover and frame.
• This will require significant force; if you're having trouble, apply more heat and try again.
• Insert an opening pick into the gap.

Insert the opening pick at the bottom edge and slide it up to cut the adhesive.

• Leave the opening pick in place, inserted into the bottom right corner.
• This will prevent the adhesive from resealing.

Extreme heat may cause warping - use with caution.

• Apply a heated iOpener to the right edge of the back cover for two minutes.
• Alternatively, use a hair dryer, but avoid excessive heat to prevent damage.

• Slide the opening pick from the bottom right corner up the entire right edge to cut the adhesive.
• Leave the opening pick lodged in the top right corner for the next step.

Apply a iOpener to the top edge of the back cover for two minutes.

• Alternatively, use a hair dryer, but exercise caution to avoid warping the back cover.

• Slide a pick around the top right corner and along the top edge to cut the adhesive.
• Leave the pick lodged in the top left corner.

Apply a heated iOpener to the left edge of the back cover for 2 minutes.

• Alternatively, use a hair dryer, but exercise caution to avoid warping the back cover.

Insert the opening pick into the top left corner.

• Slide it along the left edge of the device, working it downwards.
• Slice the remaining adhesive as you go.

Remove the back cover.

If still attached, use an opening pick to carefully pry the edges and separate any remaining adhesive.

Power on your device and test all functions during reassembly.

Ensure it's powered down completely before continuing work.

• If reinstalling old back cover: Peel off old adhesive using tweezers or fingers.
• Use isopropyl alcohol (over 90%) and microfiber cloth to remove remaining adhesive residue.
• Apply new custom-cut adhesive following this guide.

• If installing new back cover: Peel off liners and press firmly around the perimeter.

Identify the wireless charging assembly, which consists of the motherboard cover, wireless charging coil, and loudspeaker. They are secured together with graphite tape.

• Remove the wireless charging assembly as a single unit.

Be careful not to damage the graphite tape.

Use a Phillips screwdriver to remove the following screws:

• Nine 4 mm-long Phillips screws securing the motherboard cover.
• Seven 4.5 mm-long Phillips screws securing the loudspeaker.

Insert a pick under the bottom right edge of the motherboard cover.

• Twist the pick to release the clips securing the cover.
• Repeat on the bottom left edge: insert and twist another pick to release all remaining clips.

During reassembly, press down firmly around the perimeter of the motherboard cover to avoid damaging the clips.

Slide the motherboard cover to the right or left to expose the battery and wireless charging connectors.

Do not press down in the middle of the connector.

• Use a flat spudger to pry up and disconnect the battery and wireless charging press connectors from the motherboard.
• To re-attach, align carefully and press one side until it clicks, then repeat on the other side.

If misaligned, pins can bend causing permanent damage.

Insert the point of a spudger between the bottom left corner of the loudspeaker and the frame.

• Pry up to release the clips securing the left edge of the loudspeaker.
• Pry up the bottom right corner of the loudspeaker to release the remaining clips.

Press down firmly around the perimeter during reassembly to engage the clips securely.

Remove the wireless charging assembly.

Use the flat end of a spudger to gently pry up the interconnect cable press connector from the motherboard.

Disconnect the three camera press connectors with the flat end of a spudger.

• Insert one arm of the angled tweezers under the head of the red antenna cable.
• Lift straight up gently to release the red antenna cable.
• Repeat for the white antenna cable using the same process.

Repeat step 2 to disconnect the blue antenna cable from the bottom left corner of the motherboard.

During reassembly, ensure antenna cables are securely in their channels on the phone's edges.

• To reconnect, align the connector over its socket and press down with a spudger.
• The connector should snap into place; it may take a few attempts to successfully secure.

Remove the motherboard screw with a Phillips screwdriver.

Double-check SIM tray removal.

• Lift top edge with flat spudger end until graspable.
• Remove the motherboard.

Cables must be cleared during reassembly to prevent damage.

Lay motherboard in its recess and press down to secure.

Flip the motherboard over and lay it on a clean, soft cloth to prevent damage.

Careful handling is required when disconnecting the ultra-wide camera, as it may eject unexpectedly.

• Disconnect the ultra-wide camera using the flat end of a spudger.
• Remove the camera.

The motherboard remains after disassembly.