Samsung Galaxy S21 Plus Loudspeaker Replacement

Avoid overheating your device — heat-sensitive components can suffer damage.

• Prepare an iOpener and apply it to the back cover for at least three minutes.
• Alternatively, use a hair dryer, heat gun, or hot plate, but keep an eye on temperature to avoid damaging the display or internal battery.

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

• If the back cover is cracked, try lifting it with strong tape or superglueing the suction handle in place and letting it cure before proceeding.
• Lift the back cover with the suction handle to create a small gap between the cover and frame.

If you have trouble creating a gap, apply more heat to soften the adhesive further, but 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 corner to slice the adhesive.
• Leave both picks in place to prevent resealing.

If adhesive becomes hard to cut, it has likely cooled down.

• Reheat with iOpener for 2-3 minutes.
• Insert a third opening pick at the bottom right corner of phone.
• Slide opening pick along the right edge to slice adhesive.
• Leave opening pick in top right corner to prevent resealing.

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

• Insert a fourth opening pick under 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 resealing.

Insert a 5th opening pick under the bottom left corner.

• Slide it along the left edge, slicing the remaining adhesive.

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

Remove the back cover.

• Power on your phone and test all functions before reassembly.
• Power down your phone completely after testing.

Do not proceed without powering down your phone — risk of damage from accidental turn-on during reassembly.

• Remove any adhesive chunks with a pair of tweezers or your fingers.
• Wipe away adhesive residue with high concentration (over 90%) isopropyl alcohol.

Avoid using low-concentration cleaning solutions as they may leave behind residue.

• If using Samsung custom-cut adhesives, refer to the Samsung Adhesive Guide.
• If using double-sided tape, refer to the Double-Sided Tape Installation Guide.

Risk of chemical leak or thermal event: avoid puncturing or bending the battery with your tool.

• When sliding the pick, be cautious of the cable beneath the charging coil and stop if it catches.
• Insert an opening pick underneath the left bottom end of the NFC antenna and charging coil assembly.
• Slide the opening pick along the bottom left edge to carefully separate the assembly from the battery.

Insert a opening pick under the bottom of the NFC antenna and charging coil assembly.

• Slide the pick along the bottom edge, separating the assembly from the loudspeaker.

Disconnect the charging coil by prying the connector straight up with a spudger.

Disconnect the NFC antenna connector with a spudger, prying it straight up from its socket.

Remove the NFC antenna and charging coil assembly using a Phillips screwdriver.

• Five 3.9 mm-long Phillips head screws will be removed.

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

Use a spudger to pry the battery connector straight up out of its socket.

Remove the loudspeaker assembly screws using a Phillips screwdriver.

• The screws are 6 in number and have a length of 3.9 mm.

Insert a spudger or opening pick into the gap between the top edge of the loudspeaker assembly and the midframe.

• Pry up the loudspeaker assembly using your tool, tilting it downwards.

Remove the loudspeaker assembly.

• During reassembly, clean affected areas with isopropyl alcohol (greater than 90% concentration), then apply new adhesive as needed.