Phone · Motorola · G Pure
Motorola G Pure Logic Board Repair
Logic Board Repair guide for the Motorola G Pure
Before you begin
Tools
- Phillips #00 screwdriver
- Plastic spudger
- SIM card eject tool
- Plastic opening picks
- ESD-safe tweezers
- Anti-static wrist strap
- Soldering iron
- Desoldering braid
Parts / materials
- Isopropyl alcohol (99%)
- Rosin soldering flux
- Microfiber cloth
Safety
- Wear an anti-static wrist strap to protect sensitive logic board micro-components from ESD damage.
- Disconnect the battery cable immediately after removing the protective shield to prevent electrical shorts.
- Perform soldering in a well-ventilated space and avoid inhaling flux fumes.
Overview
Step-by-step
- 1
Power off the device
1 minPress and hold the Power button on the side of the Moto G Pure, then select Power Off on the screen. Ensure the device is fully shut down before proceeding.
- 2
Eject the SIM card tray
1 minInsert a SIM eject tool or paperclip into the hole next to the SIM tray on the left edge. Push firmly straight in until the tray pops out, then remove it.
- 3
Unclip the rear cover
4 minInsert a plastic opening pick into the seam between the back cover and the display frame near the SIM slot. Slide the pick around the perimeter to release the plastic clips holding the cover.
- 4
Disconnect the fingerprint reader cable
2 minGently lift the back cover slightly away from the housing to expose the fingerprint reader ribbon cable. Use ESD-safe tweezers or a spudger to carefully disconnect the cable from the motherboard before fully removing the cover.
- 5
Unscrew the upper motherboard shield
3 minUse a Phillips #00 screwdriver to remove all securing screws holding the plastic upper motherboard shield in place. Keep the screws organized for reassembly.
- 6
Remove the motherboard shield
1 minInsert a plastic spudger beneath the edge of the motherboard bracket and lift it up to detach it from the phone frame.
- 7
Disconnect the battery flex cable
1 minPry the battery connector straight up off its socket on the logic board using a flat plastic spudger. This prevents electrical shorts while working.
- 8
Disconnect display and interconnect ribbons
2 minUse the flat end of a spudger to pry up the display flex cable, main interconnect cable, and front camera press-fit connectors from the logic board.
- 9
Disconnect coaxial antenna cables
2 minGently pry up the thin coaxial antenna cables from their small snap sockets on the lower portion of the logic board using tweezers.
- 10
Remove motherboard retaining screws
2 minUnscrew any remaining Phillips screws securing the logic board directly to the inner metal chassis.
- 11
Lift out the logic board
2 minCarefully pry up under the corner of the logic board using a plastic spudger and remove it from the frame. Avoid snagging any lingering ribbon cables.
- 12
Solder damaged board components
12 minApply rosin flux to damaged micro-components or solder pads on the logic board. Use a fine-tip soldering iron and desoldering braid to clear bad joints or replace faulty surface-mount components.
- 13
Position the logic board in the housing
2 minAlign the repaired logic board with the alignment pegs in the frame and press it gently into place.
- 14
Reconnect display antenna and battery cables
3 minSnap the coaxial antenna cables, display ribbon, interconnect ribbon, and finally the battery connector back into their respective sockets on the board.
- 15
Reinstall motherboard shield and screws
3 minPlace the plastic upper shield back over the logic board and secure it tightly using the Phillips screws.
- 16
Reattach rear cover and SIM tray
2 minReconnect the fingerprint sensor cable, press the back cover firmly onto the chassis until clips snap, and reinsert the SIM tray.
After your Motorola G Pure logic board repair
Power the G Pure back on and test the logic board 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 Pure 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 Pure repair context in the encyclopedia, or open related DIY guides.
