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Motorola G100 Screen Replacement

Screen Replacement guide for the Motorola G100

Moderate
~48 min
22 steps

Before you begin

Tools

  • Heat gun or hairdryer
  • Suction cup
  • Plastic opening picks
  • Phillips #00 screwdriver
  • Spudger
  • Tweezers
  • SIM eject tool

Parts / materials

  • Replacement screen for Motorola Moto G100
  • Precut screen adhesive strips
  • Precut rear cover adhesive strips
  • 99% Isopropyl alcohol
  • Lint-free cleaning cloth

Safety

  • Wear protective safety glasses to prevent eye injury from cracked glass fragments.
  • Disconnect the battery cable before handling interior components to prevent electrical shorts.
  • Do not heat the device above 80°C (176°F) to avoid damaging temperature-sensitive internal components.

Overview

# Motorola G100 Screen Replacement Repair Guide Action-specific screen replacement walkthrough for the Motorola G100. About 48 minutes across 22 steps. This DIY guide walks through screen replacement on the Motorola G100 (Moto G series phone). Before you open the device, confirm the exact model number on the Motorola settings screen or rear housing so your replacement part matches the G100 specifically—not a similar Moto G sibling. Most DIY techs finish this Motorola G100 screen replacement in about 48 minutes when parts and tools are ready. Difficulty is rated intermediate for this model. Recommended tools for this Motorola G100 job: Heat gun or hairdryer, Suction cup, Plastic opening picks, Phillips #00 screwdriver, Spudger, Tweezers, SIM eject tool. Parts and supplies: Replacement screen for Motorola Moto G100, Precut screen adhesive strips, Precut rear cover adhesive strips, 99% Isopropyl alcohol, Lint-free cleaning cloth. Power the G100 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 Motorola G100, 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 screen replacement for this model with tested parts and a workmanship warranty.

Step-by-step

  1. 1

    Remove SIM Tray

    1 min

    Insert a SIM eject tool into the hole next to the tray on the left edge. Push firmly to eject the tray and remove it.

  2. 2

    Heat Rear Cover

    3 min

    Use a heat gun or hair dryer on medium heat to warm the perimeter of the back cover for 2-3 minutes. Keep the heat source moving to avoid localized overheating.

  3. 3

    Apply Suction Cup

    1 min

    Press a suction cup onto the lower section of the rear cover. Pull up firmly on the ring to create a small gap between the glass and frame.

  4. 4

    Slice Rear Adhesive

    2 min

    Insert an opening pick into the gap created by the suction cup. Slide the pick along the bottom edge to slice through the adhesive seal.

  5. 5

    Pry Around Rear Edges

    3 min

    Continue sliding opening picks around the left, right, and top edges of the phone. Take extra care near the power button area to avoid damaging internal flex cables.

  6. 6

    Disconnect Fingerprint Sensor Cable

    2 min

    Gently tilt the rear cover open like a book without straining the connected cable. Use a spudger to pry the fingerprint sensor flex cable off its motherboard connector.

  7. 7

    Remove Midframe Screws

    4 min

    Use a Phillips #00 screwdriver to remove all visible screws securing the motherboard bracket and lower speaker assembly. Store the screws systematically by size.

  8. 8

    Remove Motherboard Cover

    2 min

    Insert a plastic opening tool beneath the plastic motherboard shield. Gently pry up to unclip and remove the protective cover from the chassis.

  9. 9

    Disconnect Battery Cable

    1 min

    Use the flat end of a spudger to pry the battery flex cable directly up from its motherboard socket. Disconnecting power prevents short circuits during the rest of the repair.

  10. 10

    Disconnect Display Cable

    1 min

    Locate the main display ribbon cable on the motherboard. Pry it straight up from its connector using a plastic spudger.

  11. 11

    Heat Front Screen

    3 min

    Apply heat around the outer perimeter of the front screen glass for 2-3 minutes. Ensure the glass feels hot to the touch to adequately soften the factory adhesive.

  12. 12

    Slice Screen Adhesive

    4 min

    Attach a suction cup near the bottom edge of the glass and pull up. Slide an opening pick under the display edge and cut along all four sides.

  13. 13

    Remove Damaged Screen

    2 min

    Carefully lift the screen away from the frame while guiding the attached ribbon cable through the slot in the midframe. Set the broken display aside.

  14. 14

    Clean Chassis Frame

    3 min

    Scrape away remaining adhesive from the metal frame channel using a spudger. Clean the inner perimeter thoroughly with isopropyl alcohol and a lint-free cloth.

  15. 15

    Apply Screen Adhesive

    3 min

    Peel the protective backing from custom precut display adhesive and press it firmly onto the cleaned frame perimeter. Remove the top liner to expose the sticky surface.

  16. 16

    Install New Screen Assembly

    2 min

    Thread the flex ribbon cable of the new display assembly through the chassis slot. Carefully align the screen and press it firmly into the frame.

  17. 17

    Connect Display Flex Cable

    1 min

    Align the display cable connector over its socket on the motherboard. Press down firmly on both sides until it clicks into place.

  18. 18

    Connect Battery Flex Cable

    1 min

    Reattach the battery connector to its socket on the motherboard. Ensure a solid, flush connection.

  19. 19

    Reinstall Motherboard Cover

    3 min

    Position the plastic motherboard shield over the board. Press along the edges to snap it in place, then reinsert and tighten all Phillips screws.

  20. 20

    Connect Fingerprint Sensor Cable

    2 min

    Hold the rear cover near the chassis and reattach the fingerprint sensor ribbon cable to its motherboard socket using a spudger.

  21. 21

    Attach Rear Cover

    3 min

    Apply fresh adhesive strips along the frame perimeter. Align the back cover precisely over the frame and press firmly around all edges to seal.

  22. 22

    Reinsert SIM Tray

    1 min

    Align the SIM card tray with the slot on the side of the phone. Push it fully inward until flush with the outer frame.

After your Motorola G100 screen replacement

Power the G100 back on and test the screen replacement 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 G100 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 G100 repair context in the encyclopedia, or open related DIY guides.

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