Samsung Galaxy S21 Wireless Charging Coil Replacement

Power off your phone completely before starting.

• Apply a heated iOpener to the bottom edge of the back cover for two minutes.
• Alternatively, use a hair dryer, heat gun, or hot plate. Be cautious not to overheat and damage sensitive components such as the display, internal battery, and plastic back cover.

Apply a suction cup to the back of the phone, near the center bottom edge.

Pull up firmly but carefully on the suction cup to create a gap between the back cover and frame.

• If having trouble, apply more heat to the edge and try again.

Insert an opening pick into the gap, but only about 5 mm deep to avoid damaging internal components.

Slide the pick back and forth along the bottom edge to slice through the adhesive.

Do not remove the pick, as this can cause the adhesive to reseal.

Apply iOpener to the left edge of the back cover and heat for 2 minutes.

• Apply a suction cup near the center of the left edge.
• Pull up on the suction cup with strong force to create a gap.

Insert an opening pick no more than 5 mm into the gap to avoid damaging internal components.

Do not cut past the camera shell — risk of damaging the back cover.

• Slide a strong opening pick along the left edge towards the bottom left corner.
• The goal is to cut the adhesive, but do not go too far.
• Leave the pick in place after cutting to prevent resealing.

Heat a iOpener and apply it to the right edge of the back cover for two minutes.

• Apply a suction cup to the phone's back, near the center of the right edge.

Use strong, steady force to create a gap between the back cover and frame.

• Insert an opening pick into the gap, but only up to 3 mm to avoid damaging the secondary interconnect cable.

Insert a pick at the top-right corner of the back cover.

• Slide the pick back and forth along the right edge, cutting through the adhesive.
• Leave the pick in place to prevent resealing of the adhesive.

Insert the opening pick into the top-right corner of the phone.

Limit insertion depth to 5 mm to avoid damaging internal components.

The same procedure can be applied to other corners, but not the top-left due to the rear-facing camera.

• Position the top-most opening pick near the camera lens.
• Move the left-edge pick alongside the device's edge.

Apply iOpener to the camera shell for 2 minutes.

Rotate the back cover counterclockwise to create a gap between the camera shell and the frame.

• Insert the opening pick up to 5 mm only, being careful not to scratch the camera.
• Insert an opening pick into the created gap.

If this method does not work, proceed with caution to the next step for an alternative method; otherwise, skip the next step.

Careful: Risk of cracking the plastic back cover.

• Slide two picks under the corners adjacent to the camera shell.
• Moved the picks back and forth along the bridge until a gap forms between the camera shell and the frame.

Insert an opening pick between the camera shell and frame to break the adhesive bond.

Heating multiple times may be required due to significant adhesive holding the frame in place.

Locate and carefully remove additional adhesive to the right of the camera.

Be aware of a plate around the flash that may cause the pick to get stuck.

Angle the pick downward to prevent damage during removal.

Align the opening pick's tip with your phone's flash.

• Insert the pick slowly, avoiding the flash's plate.
• The plate's resistance may feel similar to adhesive; angle the pick downward to prevent slipping.
• Slice the adhesive to the right of the camera.

Remove the back cover.

• If stuck, slide a pick around the edges to separate completely.
• During reassembly:
• Power on phone and test functions before sealing.
• Completely power down phone before continuing.

Remove adhesive chunks with tweezers or fingers.

Use high concentration (over 90%) isopropyl alcohol to clean residue.

• If using Samsung custom-cut adhesives, follow the provided guide.
• If using double-sided tape, follow the provided guide.

Remove the motherboard bracket by unscrewing its five 4 mm Phillips screws.

Label and store each screw to ensure correct reassembly.

Use a pair of tweezers to gently pull up and unclip the motherboard bracket from the frame.

Do not completely remove the bracket yet, as it's still attached to the wireless charging coil.

Hold the motherboard bracket out of the way using tweezers or your fingers.

• Pry up the battery press connector with a spudger, targeting the edge of the connector to avoid damage.
• To reattach: align and press one side until it clicks, then repeat on the other side. Avoid pressing in the middle.

Misaligned connectors can cause permanent damage by bending pins.

• Hold the motherboard bracket out of the way.
• Use a spudger to pry up the wireless charging coil's press connector.
• Disconnect the press connector.

Peel the wireless charging coil off the phone with your fingers.

Be careful not to leave any adhesive residue on the phone's surface.

• During reassembly, refasten the motherboard bracket screws first.
• Firmly press the rest of the coil down onto its mount to secure it in place.