Phone · Motorola · Moto Edge 20
Motorola Moto Edge 20 Logic Board Repair
Logic Board Repair guide for the Motorola Moto Edge 20
Before you begin
Tools
- Precision screwdriver set
- Plastic opening tools
- Anti-static wrist strap
- Tweezers
- Magnifying glass or headlamp
- Soldering iron
- Heat gun or iOpener
- Suction cup
- Spudger
Parts / materials
- Desoldering braid
- Flux
- 99% Isopropyl alcohol
- Pre-cut back cover adhesive
Safety
- Wear an anti-static wrist strap to prevent ESD damage to sensitive electronic components.
- Work in a well-ventilated area when heating adhesive or using soldering flux.
- Wear protective eyewear to shield against solder splatter and heated glass pieces.
Overview
Step-by-step
- 1
Power off device
1 minPress and hold the Power button, then tap Power Off on the screen to completely shut down the device.
- 2
Eject SIM tray
1 minInsert a SIM eject tool into the hole at the bottom of the phone to pop out and remove the SIM tray.
- 3
Heat back panel
2 minApply a heat gun or heated iOpener around the edges of the back panel for two minutes to soften the adhesive.
- 4
Attach suction cup
1 minPlace a suction cup near the bottom edge of the back panel and pull upward to create a slight gap.
- 5
Slice back adhesive
3 minInsert a plastic opening pick into the gap and slide it along all edges to cut through the adhesive.
- 6
Remove rear panel
1 minLift the rear panel away from the frame and set it aside in a safe location.
- 7
Unscrew mainboard cover
3 minRemove the Phillips #000 screws securing the upper plastic motherboard cover.
- 8
Detach mainboard cover
1 minPry up the edge of the plastic motherboard cover using a spudger and remove it from the device.
- 9
Disconnect battery cable
1 minUse the flat end of a spudger to pry the battery flex connector straight up from the motherboard.
- 10
Disconnect display flex
2 minPry up the display and main interconnect flex connectors from the logic board using a plastic spudger.
- 11
Unplug antenna cables
2 minUse ESD tweezers to gently unclip the coaxial antenna cables from the right edge of the logic board.
- 12
Disconnect camera modules
3 minUnplug the camera flex connectors and lift the camera sensors out of their sockets.
- 13
Unscrew logic board
1 minRemove the single Phillips screw securing the logic board to the inner chassis.
- 14
Extract logic board
2 minGently pry up the bottom edge of the logic board and remove it from the housing.
- 15
Clean board area
3 minApply 99% isopropyl alcohol to an ESD brush and gently clean any corrosion or debris off the target area.
- 16
Apply flux
2 minDispense a small amount of liquid soldering flux directly onto the micro-components requiring reflow or replacement.
- 17
Perform micro-soldering
10 minUse a fine-tip soldering iron and desoldering braid to repair damaged solder joints or swap faulty components under magnification.
- 18
Reinstall logic board
2 minCarefully place the repaired logic board back into the phone frame and secure it with its retaining screw.
- 19
Reconnect hardware components
4 minPlug in the cameras, antenna cables, display flex, and finish by reconnecting the battery cable.
- 20
Reassemble cover and panel
5 minReattach the upper motherboard shield, tighten its screws, and press the rear panel onto new adhesive tape.
After your Motorola Moto Edge 20 logic board repair
Power the Moto Edge 20 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 Moto Edge 20 job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.
Prefer a professional repair?
Book Motorola Moto Edge 20 logic board repair at LML Repair in Seattle — same-day options available.
