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LG V30 Water Damage Repair

Water Damage Repair guide for the LG V30

Expert
~71 min
16 steps

Before you begin

Tools

  • Phillips #00 screwdriver
  • Heat gun or hair dryer
  • Suction cup tool
  • Plastic prying tools / opening picks
  • Spudger tool
  • Soft brush
  • Tweezers
  • SIM eject tool

Parts / materials

  • Isopropyl alcohol (99%)
  • Compressed air
  • Pre-cut rear glass adhesive strips
  • Lint-free microfiber cloth

Safety

  • Disconnect the battery press-connector immediately after removing the midframe to prevent short circuits.
  • Wear safety glasses when scrubbing with isopropyl alcohol or using compressed air.
  • Do not apply excessive heat to the device to avoid damaging the internal lithium-ion battery.

Overview

# LG V30 Water Damage Repair Repair Guide Action-specific water damage repair walkthrough for the LG V30. About 71 minutes across 16 steps. This DIY guide walks through water damage repair on the LG V30 (V 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 V30 specifically—not a similar V Series sibling. Most DIY techs finish this LG V30 water damage repair in about 71 minutes when parts and tools are ready. Difficulty is rated expert for this model. Recommended tools for this LG V30 job: Phillips #00 screwdriver, Heat gun or hair dryer, Suction cup tool, Plastic prying tools / opening picks, Spudger tool, Soft brush, Tweezers, SIM eject tool. Parts and supplies: Isopropyl alcohol (99%), Compressed air, Pre-cut rear glass adhesive strips, Lint-free microfiber cloth. Power the V30 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 V30, 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

    Remove the SIM and MicroSD Card Tray

    1 min

    Insert a SIM eject tool or straightened paperclip into the hole on the right edge of the frame. Eject and remove the card tray.

  2. 2

    Heat the Rear Glass Panel

    3 min

    Apply a heat gun set to low temperature across the outer perimeter of the back cover for two minutes to soften the adhesive.

  3. 3

    Apply Suction Cup to Rear Glass

    2 min

    Press a suction cup onto the lower third of the rear glass. Pull upward gently to create a small gap between the glass and the body.

  4. 4

    Slice Perimeter Adhesive

    5 min

    Insert an opening pick into the gap created by the suction cup. Slide the pick around all four edges to slice through the adhesive seal.

  5. 5

    Lift and Remove Rear Glass

    2 min

    Carefully lift the rear glass off the frame. Use a plastic spudger to disconnect the fingerprint sensor cable attached to the interior if necessary.

  6. 6

    Unscrew Midframe Fasteners

    4 min

    Use a Phillips #00 screwdriver to remove the ten 4.0 mm screws securing the midframe and wireless charging pad.

  7. 7

    Remove Wireless Charging Midframe

    2 min

    Insert a plastic spudger under the edge of the plastic midframe shield and gently pry it up and out of the phone chassis.

  8. 8

    Disconnect the Battery Cable

    1 min

    Locate the battery flex connector on the right side of the motherboard. Pry it straight up with a plastic spudger to disconnect power immediately.

  9. 9

    Disconnect Camera and Display Flex Cables

    3 min

    Use your spudger to unclip the front camera, rear dual-camera module, and main display flex connectors from the motherboard.

  10. 10

    Lift Out the Motherboard

    2 min

    Gently lift the top edge of the motherboard and tilt it up to clear the frame, then remove it completely from the phone.

  11. 11

    Inspect Components for Corrosion

    3 min

    Examine the motherboard, flex connectors, and housing under good lighting for white or green mineral corrosion deposits.

  12. 12

    Scrub the Motherboard with Isopropyl Alcohol

    10 min

    Submerge or heavily soak the motherboard in 99% isopropyl alcohol. Use a soft brush to gently scrub away all visible corrosion from components and connectors.

  13. 13

    Clean Connectors and Internal Chassis

    8 min

    Dip a brush or cotton swab into 99% isopropyl alcohol and scrub liquid residue from the internal frame, speaker assembly, and daughterboard.

  14. 14

    Dry Components Completely

    15 min

    Use compressed air to blow liquid out from beneath surface-mount components, then allow all parts to air-dry for at least 30 minutes.

  15. 15

    Reinstall Motherboard and Connectors

    4 min

    Place the motherboard back into the frame, aligning the ports, then reconnect the display, camera, and battery flex cables securely.

  16. 16

    Reassemble Midframe and Seal Back Glass

    6 min

    Snap the wireless charging midframe back into place, install the ten Phillips screws, apply new perimeter adhesive, and press the rear glass down firmly.

After your LG V30 water damage repair

Power the V30 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 LG V30 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 V30 repair context in the encyclopedia, or open related DIY guides.

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