Phone · Google · Pixel 4a 5g
Google Pixel 4a 5g Microphone Repair
Microphone Repair guide for the Google Pixel 4a 5g
Before you begin
Tools
- Precision Torx T3 screwdriver
- Heat gun or iOpener
- Suction handle
- Plastic opening picks
- Plastic spudger
- Tweezers
- Anti-static wrist strap
Parts / materials
- Replacement Pixel 4a 5G microphone daughterboard
- Pre-cut display adhesive frame sticker
- 99% Isopropyl alcohol
Safety
- Wear safety glasses to protect against potential glass splinters if the screen is cracked.
- Do not heat the screen above 80°C (176°F) to prevent permanent damage to the OLED display.
- Disconnect the battery press-fit cable before touching any internal electronics.
Overview
Step-by-step
- 1
Heat the Display Edges
2 minApply a heat gun or iOpener around the front perimeter of the screen for two minutes to soften the frame adhesive.
- 2
Attach Suction Cup
1 minPlace a suction handle near the bottom edge of the glass and press down firmly to create a seal.
- 3
Insert Opening Pick
2 minPull up on the suction handle to create a hairline gap between the display bezel and the frame, then slide an opening pick inside.
- 4
Slice Perimeter Adhesive
4 minSlide the pick around all four sides of the phone to cut the display adhesive, keeping insertion depth under 3mm to protect inner cables.
- 5
Lift the Display Panel
2 minGently pivot the display open from the left edge like a book page, taking care not to pull on the display flex cable.
- 6
Unscrew Display Cable Shield
2 minUse a Torx T3 screwdriver to remove the two screws securing the metal display cable shield.
- 7
Disconnect Display Cable
2 minPry the display flex cable straight up from the motherboard using the flat end of a plastic spudger, then set the screen aside.
- 8
Disconnect Battery Cable
1 minUse a spudger to disconnect the main battery press connector from the motherboard to eliminate electrical risk.
- 9
Remove Loudspeaker Screws
3 minUnscrew the Torx T3 screws securing the bottom speaker assembly and daughterboard cover.
- 10
Pry Out Loudspeaker Module
2 minInsert the tip of a spudger under the loudspeaker housing and carefully lift it out of the chassis.
- 11
Disconnect Microphone Sub-Board Cable
1 minPry up the lower ribbon cable connector that links the primary microphone daughterboard to the main board.
- 12
Remove Old Microphone Board
2 minApply a drop of isopropyl alcohol around the microphone sub-board and use tweezers to gently lift it out of the phone.
- 13
Install New Microphone Board
2 minPress the replacement microphone daughterboard into the bottom chassis recess until it sits flush.
- 14
Reassemble Speaker and Display
5 minReconnect all internal cables, screw down the speaker and shield brackets, apply new display adhesive, and press the glass shut.
After your Google Pixel 4a 5g microphone repair
Power the Pixel 4a 5g 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 Google Pixel 4a 5g job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.
Keep learning
Explore more Google Pixel 4a 5g repair context in the encyclopedia, or open related DIY guides.
