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Phone · LG · G4

Power Button Repair Guide for G4

Power Button Repair guide for the LG G4

Moderate
~32 min
16 steps

Before you begin

Tools

  • Precision screwdriver set (Phillips #00)
  • Plastic prying tools
  • Spudger tool
  • Tweezers
  • Anti-static wrist strap

Parts / materials

  • Replacement LG G4 power and volume button flex cable
  • Pre-cut adhesive tape for flex cable

Safety

  • Ensure the device is powered off and the battery is removed before disassembling electronic components.
  • Wear an anti-static wrist strap to avoid electrostatic discharge damage to the motherboard.
  • Do not bend or force flex cables when disconnecting or reconnecting them.

Overview

# Power Button Repair Guide for G4 Action-specific power button repair walkthrough for the LG G4. About 32 minutes across 16 steps. This DIY guide walks through power button repair on the LG G4 (G Series series phone). Before you open the device, confirm the exact model number on the LG settings screen or rear housing so your replacement part matches the G4 specifically—not a similar G Series sibling. Most DIY techs finish this LG G4 power button repair in about 32 minutes when parts and tools are ready. Difficulty is rated intermediate for this model. Recommended tools for this LG G4 job: Precision screwdriver set (Phillips #00), Plastic prying tools, Spudger tool, Tweezers, Anti-static wrist strap. Parts and supplies: Replacement LG G4 power and volume button flex cable, Pre-cut adhesive tape for flex cable. Power the G4 off completely, remove SIMs/SD cards if present, and work on a clean, well-lit surface with a magnetic mat for screws. If a step feels wrong for your LG G4, stop and compare the connector layout to the photos in this guide. When you prefer a same-day pro repair in Seattle instead, LML Repair can handle power button repair for this model with tested parts and a workmanship warranty.

Step-by-step

  1. 1

    Power Off Phone

    1 min

    Press and hold the power button, then select the shut down option on the screen to completely turn off the device.

  2. 2

    Remove Back Cover

    1 min

    Insert a plastic prying tool or fingernail into the notch near the USB port and lift the back cover off the phone.

  3. 3

    Lift Out Battery

    1 min

    Insert a plastic pry tool into the recess at the bottom of the battery well and lift the battery out of the housing.

  4. 4

    Remove SIM and MicroSD Cards

    1 min

    Slide the SIM card and microSD card straight out of their stacked slot above the battery compartment.

  5. 5

    Unbolt Midframe Screws

    3 min

    Use a Phillips #00 screwdriver to remove the 11 visible screws securing the midframe to the main body.

  6. 6

    Pry Off Midframe

    3 min

    Insert a plastic prying tool between the front glass assembly and outer frame, then slide around the perimeter to release the plastic clips.

  7. 7

    Disconnect Front and Rear Cameras

    2 min

    Use the flat end of a spudger to gently pop the front-facing and rear-facing camera flex connectors straight up from the motherboard.

  8. 8

    Disconnect Display Connectors

    2 min

    Use a spudger to disconnect the main display assembly flex cable and digitizer flex cable from the top left of the motherboard.

  9. 9

    Remove Motherboard

    2 min

    Gently lift the bottom edge of the motherboard and pull it away from the phone frame, taking care not to snag any flex cables.

  10. 10

    Unscrew Button Assembly Bracket

    2 min

    Remove the small Phillips screw securing the metal power and volume button retaining bracket on the back of the rear midframe.

  11. 11

    Peel Up Damaged Power Button Flex

    2 min

    Use fine-tip tweezers to carefully lift and peel the adhesive-backed power button flex cable away from the rear frame notch.

  12. 12

    Install Replacement Power Button Flex

    2 min

    Position the new power button flex cable into the housing notch and press firmly so the adhesive backing secures it in place.

  13. 13

    Reinstall Button Bracket

    2 min

    Place the metal button retaining bracket back over the flex assembly and secure it with its Phillips screw.

  14. 14

    Reinstall Motherboard and Connectors

    3 min

    Set the motherboard into place on the frame and reattach the display, digitizer, and camera flex connectors by pressing down firmly until they click.

  15. 15

    Reattach Midframe and Fasten Screws

    3 min

    Snap the rear midframe back onto the front chassis, then tighten the 11 Phillips #00 screws around the perimeter.

  16. 16

    Reinsert Battery and Cover

    2 min

    Insert the SIM and microSD cards, place the battery back into its slot, and press the back cover firmly onto the phone until all sides snap shut.

After your LG G4 power button repair

Power the G4 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 LG G4 job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.

Keep learning

Explore more LG G4 repair context in the encyclopedia, or open related DIY guides.

Repair encyclopediaAll G4 guides
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