Samsung Galaxy S21 Ultra Loudspeaker Replacement

Unplug and power off your phone.

• iOpener: Apply for at least three minutes to loosen adhesive underneath.
• Alternatives: Use a hair dryer, heat gun, or hot plate with caution - avoid overheating the phone. The display and internal battery are susceptible to heat damage.

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

• If the back cover is severely cracked, apply clear packing tape or strong tape for better adhesion.
• As a last resort, superglue the suction cup to the broken cover.

Be cautious of overheating when using heat; follow iOpener instructions carefully.

Lift the back cover with the suction handle to create a small gap between it and the frame.

• If the gap is hard to create, reapply heat to soften the adhesive further.
• Insert an opening pick into the created gap.
• Slide the opening pick towards 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, slicing the adhesive.
• Leave both picks in place; resealed adhesive can reform.

Reapply iOpener for 2-3 minutes if adhesive is hard to cut.

• Insert a third opening pick at bottom right corner of phone.
• Slide this pick along right edge to cut adhesive.
• Leave the pick in top right corner to prevent resealing.

For slicing near the camera assembly, use only the tip of the opening pick (~ 4-5 mm) to avoid damage or smearing.

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

Insert the opening pick into the top left corner.

• Slide the pick along the left edge, cutting the 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.

• Power on your phone and test all functions during reassembly to ensure everything is working correctly.

• Power down your phone completely before continuing work.

Remove any adhesive chunks using a pair of tweezers or your fingers.

• Wipe away any remaining adhesive residue with high concentration (over 90%) isopropyl alcohol.

If you're using custom-cut adhesives, follow the designated guide for application and placement.

For double-sided tape, consult the provided instructions for correct use.

Locate the NFC antenna and charging coil assembly at the left bottom end.

• Insert an opening pick underneath the assembly.
• Be cautious: Slide the opening pick along the bottom left edge to separate the assembly from the battery.

Insert the opening pick at the bottom end of the NFC antenna and charging coil assembly.

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

Disconnect the charging coil by gently lifting the connector with a spudger, prying it directly upwards from its socket.

Disconnect the NFC antenna by prying the connector straight up from its socket using a spudger.

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

• Identify the five 3.9 mm-long screws securing the assembly.
• Loosen each screw in a clockwise direction.

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

Disconnect the battery cable using a spudger. Pry the connector straight up from its socket.

Remove the screws holding the loudspeaker assembly using a Phillips screwdriver.

• The screws are secured with 3.9 mm-long heads.

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

• Pry up the loudspeaker assembly by tilting it downwards.

Disconnect and remove the loudspeaker assembly.

• During reassembly, clean all surfaces with isopropyl alcohol (≥ 90%).
• Apply new adhesive where necessary to secure parts.