Phone · Motorola · Moto G40 Fusion
Motorola Moto G40 Fusion Speaker Repair
Speaker Repair guide for the Motorola Moto G40 Fusion
Before you begin
Tools
- Precision screwdriver set
- Plastic opening tools
- Anti-static wrist strap
- Tweezers
- Magnifying glass or headlamp
- Heat gun or hair dryer
- Suction cup
- Spudger
Parts / materials
- Replacement Moto G40 Fusion loudspeaker
- Back panel adhesive tape
- 90%+ Isopropyl alcohol
- Cleaning wipes
Safety
- Wear an anti-static wrist strap to prevent electrostatic damage to electronic components.
- Do not overheat the device to avoid damaging the internal lithium-ion battery.
- Work in a clean, well-ventilated area when using isopropyl alcohol.
Overview
Step-by-step
- 1
Power Off the Device
1 minPress and hold the power button, then select 'Power Off' on the screen. Ensure the device is fully shut down before starting disassembly.
- 2
Eject the SIM Card Tray
1 minInsert a SIM eject tool into the pinhole next to the SIM tray. Push firmly until the tray ejects, then slide it out completely.
- 3
Heat the Back Panel
2 minApply heat to the edges of the back cover using a heat gun or hairdryer on low for two minutes. This softens the adhesive securing the rear panel.
- 4
Attach Suction Cup
2 minPlace a suction cup on the lower portion of the back panel. Pull up gently on the ring to create a slight gap between the cover and the frame.
- 5
Insert Opening Pick
2 minSlide a plastic opening pick into the seam created by the suction cup. Slice through the adhesive along the bottom edge of the device.
- 6
Slice Back Cover Adhesive
4 minGuide the opening pick along the left, right, and top edges of the phone. Work slowly to avoid cracking the rear panel or snagging internal ribbon cables.
- 7
Disconnect Fingerprint Flex Cable
3 minSlightly lift the back cover, taking care not to strain the fingerprint sensor cable. Use a plastic spudger to detach the connector from the motherboard sub-board.
- 8
Remove Speaker Screws
3 minUse a Phillips #00 screwdriver to remove the screws securing the lower loudspeaker module to the phone frame. Place screws in an organizer tray.
- 9
Pry Up the Speaker Housing
2 minInsert the flat end of a plastic spudger underneath the edge of the speaker module. Gently pry upward to release the clips holding the module in place.
- 10
Remove the Loudspeaker
1 minLift the old loudspeaker assembly out of the lower chassis with tweezers. Inspect the receded area for any leftover adhesive or debris.
- 11
Clean Gold Contact Pads
2 minMoisten a cotton swab with 90%+ isopropyl alcohol and wipe the exposed contact pads on the lower sub-board. Let the contacts air dry for one minute.
- 12
Position the New Loudspeaker
2 minAlign the new replacement loudspeaker module with the cavity at the bottom of the device. Press down evenly until the housing snaps flush into position.
- 13
Secure the Speaker Screws
3 minReinstall the Phillips screws into the loudspeaker module. Tighten each screw until snug, taking care not to strip the threads.
- 14
Reconnect the Fingerprint Cable
2 minPosition the rear cover near the main frame and align the fingerprint flex connector over its socket. Press down gently until it clicks into place.
- 15
Apply Fresh Back Panel Adhesive
3 minClean the frame rim with isopropyl alcohol, then apply pre-cut adhesive strips along the edges. Peel away the protective backing layer.
- 16
Reattach the Back Cover
2 minAlign the back panel properly over the chassis and press firmly along all edges to seal the adhesive. Slide the SIM card tray back into its slot.
After your Motorola Moto G40 Fusion speaker repair
Power the Moto G40 Fusion 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 Motorola Moto G40 Fusion job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.
Keep learning
Explore more Motorola Moto G40 Fusion repair context in the encyclopedia, or open related DIY guides.

