Phone · Samsung · Galaxy S7 Active
Samsung Galaxy S7 Active Microphone Repair
Microphone Repair guide for the Samsung Galaxy S7 Active
Before you begin
Tools
- Heat gun or hair dryer
- Suction cup tool
- Plastic prying tools
- Phillips #00 screwdriver
- Tweezers
- Spudger tool
Parts / materials
- Replacement microphone daughterboard
- Pre-cut rear cover adhesive tape
- Isopropyl alcohol (99%)
Safety
- Wear protective eyewear when working near heated plastic or glass elements.
- Disconnect the battery press connector before removing or installing internal micro-components.
- Keep heating tools moving continuously to prevent localized thermal damage to internal components.
Overview
Step-by-step
- 1
Power off the phone
1 minPress and hold the power button, then tap Power Off on the screen. Ensure the device is fully shut down before proceeding.
- 2
Heat the rear cover
2 minApply heat to the outer edges of the rear cover for two minutes using a heat gun or hair dryer to soften the factory adhesive.
- 3
Apply suction cup
2 minPress a suction cup firmly onto the lower third of the rear cover. Pull upward with steady pressure to create a small gap near the edge.
- 4
Insert opening pick
1 minSlide a plastic opening pick into the gap created between the outer frame and the rear cover.
- 5
Slice perimeter adhesive
4 minSlide the pick around all four edges of the back panel to cut through the adhesive seal. Reapply heat if the pick meets heavy resistance.
- 6
Remove the rear cover
2 minGently lift the rear cover off the chassis and set it aside. Clean away any excess lingering adhesive around the frame edge.
- 7
Unscrew midframe screws
3 minUse a Phillips #00 screwdriver to remove the 12 screws securing the midframe and wireless charging pad to the body.
- 8
Remove upper midframe
2 minInsert a spudger under the top midframe plastic bracket and unclip it from the motherboard housing.
- 9
Pry out lower speaker assembly
2 minLever the plastic lower speaker housing upward with a spudger to detach it from the bottom frame.
- 10
Disconnect the battery
1 minUse a plastic spudger to pry the battery connector straight up from its socket on the motherboard.
- 11
Disconnect antenna cables
2 minUnplug the white and blue coaxial antenna cables from the bottom daughterboard using precision tweezers.
- 12
Unscrew microphone board
1 minRemove the single Phillips #00 screw holding the lower microphone flex board to the phone housing.
- 13
Remove old microphone board
2 minGently pry up the microphone daughterboard assembly with a spudger and lift it out of the frame.
- 14
Install new microphone board
2 minSet the replacement microphone board into the bottom recessed channel and press it flush against the chassis.
- 15
Secure microphone board screw
1 minReinsert and tighten the Phillips #00 screw to lock the replacement microphone board into place.
- 16
Reconnect antenna cables
2 minAlign and press down on the blue and white coaxial cable heads until they snap securely onto the board headers.
- 17
Reconnect the battery
1 minAlign the battery flex cable over its motherboard socket and press down firmly until it snaps into place.
- 18
Reinstall midframe and speaker
3 minSnap the lower speaker and upper midframe back into place, then secure all 12 Phillips #00 screws.
- 19
Reseal the rear cover
3 minApply new pre-cut adhesive strips along the frame perimeter, press the back cover down, and hold firm pressure for one minute.
After your Samsung Galaxy S7 Active microphone repair
Power the Galaxy S7 Active 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 Samsung Galaxy S7 Active 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 S7 Active repair context in the encyclopedia, or open related DIY guides.
