Samsung Galaxy S21 Plus NFC Antenna & Charging Coil Assembly Replacement

Prepare an iOpener and apply it to the back cover for at least three minutes.

• Use a hair dryer, heat gun, or hot plate as alternatives, but be careful not to overheat the phone.
• The display and internal battery are susceptible to heat damage, so take precautions to avoid overheating.

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

If the back cover is cracked, the suction handle may not stick; try using strong tape or superglue it in place and let cure before proceeding.

• Lift the back cover with the suction handle to create a small gap between it and the frame.
• If a gap is hard to create, apply more heat to further soften the adhesive; follow iOpener instructions to avoid overheating.

Insert an opening pick into the created gap.

Slide the opening pick to the bottom left corner to slice the adhesive.

Leave the opening pick in place to prevent the adhesive from resealing.

Insert a second opening pick at the bottom edge.

• Slide it to the bottom right, cutting the adhesive.
• Leave both picks in place to keep the adhesive from reforming.

Reapply heat if the adhesive is hard to cut.

• Use an iOpener for two to three minutes.

Insert a third opening pick at the bottom right corner of your phone.

Slide the opening pick along the right edge to slice the adhesive.

Remove the opening pick from the top left, not the top right, after completing this step to prevent resealing.

When slicing near the camera assembly, insert only the tip of the opening pick (~4-5 mm) to avoid damaging or smearing the camera.

• Insert a fourth opening pick underneath the top right corner of your phone.
• Slide the opening pick along the top edge to slice the adhesive.
• Leave the opening pick in the top left corner to prevent the adhesive from resealing.

• Insert an opening pick at the bottom left corner.
• Slide the pick along the left edge to slice remaining adhesive.

When near the power button, insert only the tip of the pick (~3-4 mm) to avoid damaging the flex cable.

Remove the back cover.

• During reassembly: power on your phone and test all functions before sealing it up.

• Make sure to power your phone back down completely before continuing work.

• Remove any adhesive chunks with a pair of tweezers or your fingers.
• Use high concentration (over 90%) isopropyl alcohol to wipe away any adhesive residue.
• If using Samsung custom-cut adhesives, follow the provided guide.
• If using double-sided tape, follow the relevant guide for reassembly procedures.

Never puncture or bend the battery with your tool — risk of chemical leakage or thermal event.

• Be cautious of the cable under the charging coil.
• Work slowly, and stop the pick if it catches on the cable.
• Insert an opening pick underneath the left bottom end of the NFC antenna and charging coil assembly.
• Carefully slide the pick along the bottom left edge to separate the assembly from the battery.

Insert a strong opening pick underneath the bottom end of the NFC antenna and charging coil assembly.

• Carefully slide the opening pick along the bottom of the assembly to separate it from the loudspeaker.

Disconnect the charging coil using a spudger, prying the connector straight up from its socket.

Disconnect the NFC antenna using a spudger.

• Pry the connector straight up from its socket.

Remove the NFC antenna and charging coil assembly's five 3.9 mm long screws using a Phillips screwdriver.

Remove the NFC antenna and charging coil assembly using a pair of tweezers or your fingers.