Samsung Galaxy S20 FE 5G Motherboard Replacement

ID: 160784

Description: Use this guide to replace the motherboard in...

Before you begin, let your battery drain below 25%—a charged lithium-ion battery can be dangerous if accidentally punctured.
Power off your phone and unplug any cables.

Firmly press a SIM eject tool, bit, or straightened paper clip into the SIM card tray hole on the top edge of your phone until the tray ejects.
Remove the SIM card tray.
If you accidentally inserted the SIM eject tool into a microphone hole, don't worry! You most likely didn't damage the microphone.

Heat an iOpener and apply it to the bottom edge of the back cover for two minutes.
You can also use a hair dryer—but be careful, as extreme heat will warp 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 in the gap.

Slide the opening pick along the bottom edge to slice the adhesive securing the back cover.
Leave the opening pick inserted in the bottom right corner to prevent the adhesive from resealing.

Apply a heated iOpener to the right edge of the back cover for two minutes.
You can also use a hair dryer—but be careful, as extreme heat will warp the back cover.

Slide the opening pick around the bottom right corner and all the way up the right edge to slice the adhesive.
Leave the opening pick inserted in the top right corner.

Apply a heated iOpener to the top edge of the back cover for two minutes.
You can also use a hair dryer—but be careful, as extreme heat will warp the back cover.

Slide the opening pick around the top right corner and along the top edge to slice the adhesive.
Leave the pick inserted in the top left corner.

Apply a heated iOpener to the left edge of the back cover for two minutes.
You can also use a hair dryer—but be careful, as extreme heat will warp the back cover.

Slide the opening pick around the top left corner and all the way down the left edge to slice the remaining adhesive.

Remove the back cover.
If the back cover is still stuck to the frame, slide an opening pick around the perimeter to separate any remaining adhesive.

During reassembly, this is a good point to power on your device and test all functions before sealing it up. Be sure to power it back down completely before you continue working.
If you're reinstalling your old back cover:
Use tweezers or your fingers to peel off the old adhesive from the back cover and frame.
Use highly-concentrated isopropyl alcohol (over 90%) and a microfiber cloth to remove any remaining adhesive residue.
Follow this guide to apply new custom-cut adhesive.
If you're installing a new back cover, peel off the liners and press firmly around the perimeter to secure the back cover to the frame.

The wireless charging assembly includes the motherboard cover, wireless charging coil, and loudspeaker. They're held together with graphite tape and should be removed as one piece.
Use a Phillips screwdriver to remove the 16 screws securing the wireless charging assembly:
Nine 4 mm-long screws securing the motherboard cover
Seven 4.5 mm-long 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.
Insert and twist the opening pick on the bottom left edge of the cover to release the remaining clips.
During reassembly, press down firmly around the perimeter of the motherboard cover to engage the clips.

Reposition the motherboard cover so you can access the battery and wireless charging press connectors on the bottom edge of the motherboard.

Use the flat end of a spudger to pry up and disconnect the battery and wireless charging press connectors from the motherboard.
To re-attach press connectors like this one, carefully align and press down on one side until it clicks into place, then repeat on the other side. Don't press down in the middle. If the connector is misaligned, the pins can bend and cause 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.
During reassembly, press down firmly around the perimeter of the loudspeaker to engage the clips.

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

Repeat the previous step to disconnect the blue antenna cable from the bottom left corner of the motherboard.
During reassembly:
During reassembly, make sure the antenna cables are in their channels on the edges of the phone.
To reattach antenna connectors like these, align the connector over its socket and press down with the flat end of a spudger. The connector should snap into place. This can be tricky and may take a few tries.

Use a Phillips screwdriver to remove the 4 mm-long screw securing the motherboard.

Double-check that the SIM tray is removed before taking out the motherboard.
Use the flat end of a spudger to lift the top edge of the motherboard up until you can grip it with your fingers.
Remove the motherboard.
During reassembly:
Make sure the eight cables that connect to the motherboard are out of the way so they don't get stuck under the board.
Lay the motherboard in its recess and press down to secure it.

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

Be careful when disconnecting the ultra wide camera, as it might eject unexpectedly.
Use the flat end of a spudger to disconnect the ultra wide camera.
Remove the camera.

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