Phone · Motorola · G8
Power Button Repair Guide for G8
Power Button Repair guide for the Motorola G8
Before you begin
Tools
- Precision screwdriver set (Phillips #000)
- Plastic prying tools
- Spudger tool
- Tweezers
- Heat gun or hair dryer
- SIM eject tool
Parts / materials
- Replacement power button flex cable
- Pre-cut rear cover adhesive tape
- Isopropanol alcohol (90%+)
Safety
- Disconnect the battery immediately after removing the midframe to avoid electrical short circuits.
- Do not puncture, bend, or apply direct heat to the lithium-ion battery.
- Wear safety glasses while working with heated adhesive and plastic prying tools.
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 phone is completely shut down before starting.
- 2
Eject the SIM card tray
1 minInsert a SIM eject tool or paperclip into the hole next to the tray on the left edge. Push firmly to pop the tray out and remove it.
- 3
Heat the rear cover edges
2 minApply mild heat with a heat gun around the perimeter of the back cover for 1 minute. This softens the internal adhesive strips.
- 4
Create an opening seam
2 minInsert a plastic prying tool into the seam between the back cover and the screen frame near the SIM card slot.
- 5
Unclip the rear cover
3 minSlide the plastic tool around all edges of the frame to disengage the plastic retaining clips.
- 6
Detach the fingerprint sensor
2 minSlightly lift the back cover and use a spudger to push the fingerprint sensor down into the phone body so it stays attached to the motherboard cable.
- 7
Remove the rear cover
1 minLift the rear cover completely away from the phone once the fingerprint sensor is separated.
- 8
Unscrew the upper motherboard bracket
3 minUse a Phillips #000 screwdriver to remove all screws securing the plastic motherboard cover bracket.
- 9
Remove the motherboard bracket
2 minInsert the point of a spudger beneath the edge of the motherboard cover and lift it away from the chassis.
- 10
Disconnect the battery flex cable
1 minPry the battery press connector straight up from its motherboard socket using a plastic spudger to prevent short circuits.
- 11
Disconnect the power button flex cable
1 minLocate the power and volume button flex cable connector on the upper motherboard and pop it off its socket.
- 12
Peel up the power button flex assembly
3 minUse fine tweezers to carefully pry the power button flex cable and underlying button contacts off the inner frame adhesive.
- 13
Install the new power button flex cable
2 minPosition the new flex assembly into the side frame recess and press gently along the cable to adhere it.
- 14
Reconnect the power button connector
1 minAlign the flex cable connector with the motherboard socket and press down firmly until it snaps into place.
- 15
Reconnect the battery cable
1 minSnap the battery flex connector back into its socket on the motherboard.
- 16
Reinstall the motherboard bracket
3 minPosition the plastic motherboard shield back over the top board and tighten all Phillips screws securely.
- 17
Reattach the rear cover
2 minAlign the rear cover with the frame and press firmly along the perimeter until all clips snap tightly closed.
- 18
Reinsert the SIM tray
1 minSlide the SIM card tray back into its slot on the side of the device until flush.
After your Motorola G8 power button repair
Power the G8 back on and test the power button 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 G8 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 G8 repair context in the encyclopedia, or open related DIY guides.
