Phone · Motorola · Moto G100
Motorola Moto G100 Speaker Repair
Speaker Repair guide for the Motorola Moto G100
Before you begin
Tools
- Precision screwdriver set (Phillips #00)
- Plastic prying tools
- Suction cup tool
- Heat gun or hair dryer
- Spudger tool
- Tweezers
- SIM eject tool
Parts / materials
- Replacement Moto G100 loudspeaker module
- Rear cover adhesive strips
- Isopropyl alcohol (91%+)
Safety
- Disconnect the battery before replacing any internal components to prevent electrical shorts.
- Wear safety glasses when applying heat and using prying tools on sealed glass/plastic panels.
- Do not puncture or bend the internal lithium-ion battery during disassembly.
Overview
Step-by-step
- 1
Power off the Moto G100
1 minPress and hold the power button on the side of the device. Tap Power Off on the screen and wait for the device to shut down completely.
- 2
Eject the SIM tray
1 minInsert a SIM eject tool or paperclip into the hole next to the SIM tray on the left edge. Push firmly to eject the tray and remove it.
- 3
Heat the back panel edges
3 minApply heat to the outer edges of the rear panel using a heat gun or hair dryer on low heat for 2 to 3 minutes. This softens the factory adhesive securing the panel.
- 4
Attach a suction cup
2 minPress a suction cup firmly onto the lower portion of the rear panel. Gently pull upward on the suction ring to create a slight gap between the panel and the frame.
- 5
Insert an opening pick
2 minInsert a thin plastic prying tool or opening pick into the gap created by the suction cup.
- 6
Slice the back panel adhesive
5 minSlide the plastic pick carefully along all four sides of the rear cover to separate the adhesive. Reapply heat if the pick encounters heavy resistance.
- 7
Lift away the back cover
2 minGently lift the back cover off the chassis and set it aside in a safe location.
- 8
Unscrew the lower speaker housing
3 minUse a Phillips #00 screwdriver to remove the screws securing the plastic loudspeaker assembly cover at the bottom of the phone.
- 9
Unscrew the upper motherboard cover
3 minRemove the Phillips #00 screws securing the upper plastic motherboard shield to gain access to the battery connector.
- 10
Remove the upper shield
2 minUse a spudger to gently lift and remove the upper motherboard cover from the phone frame.
- 11
Disconnect the battery press connector
1 minPry the battery connector straight up from the motherboard using the flat end of a plastic spudger to cut power.
- 12
Remove the old loudspeaker module
2 minInsert a spudger under the edge of the lower speaker assembly and pry it up from the phone body.
- 13
Clean the spring contact pads
2 minInspect the gold contact pads on the sub-board beneath the speaker. Wipe them clean with a cotton swab dampened with isopropyl alcohol.
- 14
Position the new loudspeaker
2 minPlace the replacement loudspeaker module into the lower cavity of the frame and press it down until it sits flush.
- 15
Reconnect the battery
1 minAlign the battery press connector over its socket on the motherboard and press down until it clicks into place.
- 16
Reinstall the upper frame cover
3 minPlace the upper motherboard shield back into position and secure it with its original Phillips screws.
- 17
Secure the lower speaker cover
3 minPlace the lower housing cover over the loudspeaker and reinsert all Phillips screws tightly.
- 18
Apply back panel adhesive
4 minClean remaining glue off the perimeter frame with alcohol, then apply fresh pre-cut adhesive strips along the edges.
- 19
Reattach the rear panel
2 minAlign the rear panel with the phone frame and press firmly around all edges to secure the adhesive bond.
- 20
Reinsert the SIM tray
1 minSlide the SIM tray back into its slot on the side of the phone until it sits flush with the exterior frame.
After your Motorola Moto G100 speaker repair
Power the Moto G100 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 G100 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 G100 repair context in the encyclopedia, or open related DIY guides.

