Phone · Motorola · G Stylus 4G
Motorola G Stylus 4G Microphone Repair
Microphone Repair guide for the Motorola G Stylus 4G
Before you begin
Tools
- Phillips #00 screwdriver
- Plastic spudger
- Opening picks
- Suction handle
- Heat gun or iOpener
- Tweezers
- SIM eject tool
Parts / materials
- Replacement lower daughterboard with microphone
- Pre-cut back panel adhesive strips
- Isopropyl alcohol (99%)
Safety
- Always disconnect the battery press connector before removing or installing internal components.
- Do not bend or puncture the battery when using tools inside the phone frame.
- Wear safety glasses while applying heat to prevent glass fragments from injuring eyes.
Overview
Step-by-step
- 1
Eject the SIM card tray
1 minInsert a SIM eject tool into the hole next to the SIM tray on the left edge of the phone. Push firmly until the tray pops out, then pull it completely out.
- 2
Remove the integrated stylus
1 minPress the stylus top to unlock it from the bottom right slot. Slide the stylus entirely out of the frame.
- 3
Heat the rear cover edges
2 minUse a heat gun or hair dryer on medium heat along the outer perimeter of the back panel for two minutes to soften the adhesive.
- 4
Insert an opening pick
2 minAttach a suction handle near the bottom edge of the rear panel and lift gently. Insert a thin plastic opening pick into the small gap created above the charge port.
- 5
Slice through the rear panel adhesive
4 minSlide the pick around all four edges of the back cover to cut through the surrounding tape. Keep the pick shallow to avoid damaging internal ribbons.
- 6
Lift the rear cover slightly
1 minGently lift the back cover open like a book from the right edge. Do not pull it away completely because the fingerprint reader cable is still attached.
- 7
Disconnect the fingerprint sensor flex cable
1 minUse the flat end of a plastic spudger to pry the fingerprint sensor connector straight up from its motherboard socket.
- 8
Unscrew the upper motherboard cover
2 minRemove the Phillips #00 screws securing the plastic motherboard protective cover. Lift the plastic cover off the board and set it aside.
- 9
Disconnect the battery cable
1 minPry the battery press connector straight up off the motherboard using a plastic spudger to prevent short circuits during repair.
- 10
Unscrew the loudspeaker assembly
2 minRemove the Phillips screws securing the bottom speaker housing to the frame.
- 11
Remove the lower speaker housing
1 minInsert a spudger under the top lip of the speaker assembly and pry upwards to unclip it from the bottom chassis.
- 12
Disconnect the interconnect cable
1 minPry up the main ribbon cable connector from the daughterboard at the bottom of the phone.
- 13
Disconnect the antenna coaxial cable
1 minUse fine tweezers to gently lift the white antenna cable head straight up off its snap-on metal connector on the lower board.
- 14
Remove the microphone daughterboard
2 minPry beneath the lower daughterboard—which houses the primary microphone and USB port—with a spudger to loosen the light adhesive beneath it.
- 15
Install the new daughterboard
1 minSet the new microphone daughterboard into the lower housing notch and press firmly to seat it flush against the frame.
- 16
Reconnect the antenna and main flex cables
2 minSnap the coaxial antenna head onto its socket, then press the main interconnect flex connector onto the new board until it clicks.
- 17
Reinstall the loudspeaker housing
2 minAlign the speaker module over the lower board, press down firmly to clip it in, and resecure the Phillips screws.
- 18
Reconnect the battery and upper cover
2 minSnap the battery connector back into place, position the top motherboard cover, and tighten all removed screws.
- 19
Reseal the rear cover
3 minReconnect the fingerprint sensor cable, apply fresh adhesive strips around the rim, and press the rear cover back onto the frame firmly.
After your Motorola G Stylus 4G microphone repair
Power the G Stylus 4G back on and test the microphone 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 G Stylus 4G 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 G Stylus 4G repair context in the encyclopedia, or open related DIY guides.

