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Motorola Moto G Fast Water Damage Repair

Water Damage Repair guide for the Motorola Moto G Fast

Difficult
~57 min
14 steps

Before you begin

Tools

  • Precision Phillips #00 screwdriver
  • Plastic opening picks
  • Heat gun or hair dryer
  • Suction cup
  • Spudger
  • Soft-bristled brush
  • Tweezers
  • Anti-static wrist strap

Parts / materials

  • 99% Isopropyl alcohol
  • Lint-free microfiber cloth
  • Replacement back cover adhesive

Safety

  • Work in a well-ventilated area when using high-concentration isopropyl alcohol.
  • Disconnect the battery immediately after opening to prevent short circuits.
  • Wear safety glasses to protect eyes from splashes or debris.
  • Do not apply direct high heat to a swollen or damaged battery.

Overview

# Motorola Moto G Fast Water Damage Repair Repair Guide Action-specific water damage repair walkthrough for the Motorola Moto G Fast. About 57 minutes across 14 steps. This DIY guide walks through water damage repair on the Motorola Moto G Fast (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 Moto G Fast specifically—not a similar Moto G sibling. Most DIY techs finish this Motorola Moto G Fast water damage repair in about 57 minutes when parts and tools are ready. Difficulty is rated advanced for this model. Recommended tools for this Motorola Moto G Fast job: Precision Phillips #00 screwdriver, Plastic opening picks, Heat gun or hair dryer, Suction cup, Spudger, Soft-bristled brush, Tweezers, Anti-static wrist strap. Parts and supplies: 99% Isopropyl alcohol, Lint-free microfiber cloth, Replacement back cover adhesive. Power the Moto G Fast 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 Moto G Fast, 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 water damage repair for this model with tested parts and a workmanship warranty.

Step-by-step

  1. 1

    Eject the SIM card tray

    1 min

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

  2. 2

    Heat the back cover edges

    2 min

    Use a heat gun on a low setting to warm the outer edges of the rear cover for two minutes to soften the adhesive bond.

  3. 3

    Slice the back cover adhesive

    3 min

    Attach a suction cup near the bottom edge, pull upward, and slide an opening pick into the gap between the cover and frame.

  4. 4

    Separate the back cover

    3 min

    Slide the pick carefully along all edges to cut the adhesive, then lift the back cover slowly from the right side.

  5. 5

    Disconnect the fingerprint sensor flex cable

    2 min

    Use a plastic spudger to gently lever the fingerprint reader cable connector straight up off the motherboard.

  6. 6

    Unscrew the motherboard bracket

    3 min

    Remove the Phillips #00 screws securing the plastic motherboard bracket to the top portion of the frame.

  7. 7

    Remove the motherboard bracket

    2 min

    Insert a spudger under the plastic bracket cover and lift it clear of the device.

  8. 8

    Disconnect the battery cable

    1 min

    Pry the battery press connector straight up from its motherboard socket to immediately disable power.

  9. 9

    Disconnect the remaining ribbon cables

    3 min

    Unsnap the display cable, interconnect flex cable, and antenna cable from their sockets on the motherboard.

  10. 10

    Unscrew the motherboard

    2 min

    Remove the Phillips screws anchoring the main logic board to the internal frame.

  11. 11

    Lift out the motherboard

    2 min

    Gently lift the motherboard by its edges out of the body, ensuring no cables catch on the board.

  12. 12

    Scrub the motherboard with isopropyl alcohol

    10 min

    Dip a soft-bristled brush in 99% isopropyl alcohol and gently scrub all corroded circuits, chips, and connectors.

  13. 13

    Clean the sub-board and frame

    8 min

    Clean remaining water spots and corrosion off the lower speaker sub-board and frame using alcohol and lint-free wipes.

  14. 14

    Dry all internal components

    15 min

    Allow the cleaned motherboard and frame to air-dry completely in a dry environment before reassembling the device.

After your Motorola Moto G Fast water damage repair

Power the Moto G Fast back on and test the water damage 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 G Fast 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 Moto G Fast repair context in the encyclopedia, or open related DIY guides.

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