Phone · Samsung · Galaxy S21 Ultra
Samsung Galaxy S21 Ultra Speaker Repair
Speaker Repair guide for the Samsung Galaxy S21 Ultra
Before you begin
Tools
- Phillips #00 screwdriver
- Plastic opening picks
- Suction handle
- Heat gun or iOpener
- Spudger
- Tweezers
- SIM eject tool
Parts / materials
- Replacement Samsung Galaxy S21 Ultra loudspeaker module
- Pre-cut back cover adhesive sticker
- Isopropyl alcohol (99%)
Safety
- Wear safety glasses to protect eyes from potential glass splinters when prying the back cover.
- Power down the phone completely before beginning internal disassembly.
- Do not puncture or bend the battery when working inside the phone frame.
Overview
Step-by-step
- 1
Power off device
1 minPress and hold the side key and volume down button, then tap Power Off to completely turn off the device.
- 2
Eject SIM tray
1 minInsert a SIM eject tool into the hole at the bottom frame to pop out the SIM card tray.
- 3
Heat back glass cover
3 minApply a heated iOpener or heat gun to the edges of the back cover for 2 minutes to soften the adhesive.
- 4
Attach suction handle
2 minPlace a suction cup near the bottom edge of the back glass and pull up gently to create a small gap.
- 5
Insert opening pick
2 minPush an opening pick into the gap between the glass back cover and the metal frame.
- 6
Slice perimeter adhesive
5 minSlide the pick carefully around all four edges of the back cover to cut through the remaining adhesive.
- 7
Remove back glass cover
2 minLift the back glass carefully off the frame and set it aside on a clean surface.
- 8
Unscrew upper mid-frame bracket
3 minUse a Phillips #00 screwdriver to remove the five screws securing the upper motherboard shield.
- 9
Detach wireless charging coil
3 minUse a plastic spudger to disconnect the wireless charging coil connector and peel the coil off the battery.
- 10
Remove loudspeaker screws
3 minUnscrew the six Phillips #00 screws holding the loudspeaker assembly in place at the bottom of the device.
- 11
Pry up loudspeaker assembly
2 minInsert the flat edge of a spudger beneath the loudspeaker housing and pop it out of the chassis.
- 12
Install replacement loudspeaker
2 minAlign the new loudspeaker housing module into the bottom chamber and press it down flush into the frame.
- 13
Fasten loudspeaker screws
3 minReinstall and tighten the six Phillips #00 screws to secure the new loudspeaker assembly.
- 14
Reattach wireless charging coil
2 minLay the wireless charging pad back over the battery and press down on its connector to snap it into place.
- 15
Secure upper mid-frame bracket
3 minReinsert and tighten the five Phillips #00 screws on the upper bracket to lock the assembly in place.
- 16
Apply back glass adhesive
4 minClean remaining old glue with isopropyl alcohol and lay new pre-cut adhesive tape along the frame perimeter.
- 17
Reattach back glass cover
2 minAlign the back glass cover over the chassis and press firmly along the edges to seal the adhesive.
- 18
Reinsert SIM tray
1 minSlide the SIM tray back into its slot at the bottom of the phone until it sits flush.
After your Samsung Galaxy S21 Ultra speaker repair
Power the Galaxy S21 Ultra back on and test the speaker repair function before you put every screw away. Check touch/display response, charging, cameras, buttons, and wireless as relevant to this repair. If something fails after closing the device, reopen carefully and reseat the connectors for this Samsung Galaxy S21 Ultra job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.
Keep learning
Explore more Samsung Galaxy S21 Ultra repair context in the encyclopedia, or open related DIY guides.
