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Apple iPhone 12 Pro Max Water Damage Repair

Water Damage Repair guide for the Apple iPhone 12 Pro Max

Difficult
~76 min
18 steps

Before you begin

Tools

  • P2 Pentalobe screwdriver
  • Y000 Tri-point screwdriver
  • Phillips #000 screwdriver
  • Suction handle
  • Opening picks
  • Spudger
  • Precision tweezers
  • Soft ESD brush

Parts / materials

  • 99% Isopropyl alcohol
  • iPhone 12 Pro Max display adhesive gasket
  • Microfiber cloth

Safety

  • Power off the iPhone immediately and do not plug in a charging cable to prevent short circuits.
  • Wear safety glasses and work in a well-ventilated space when handling high-concentration isopropyl alcohol.
  • Disconnect the battery before touching or cleaning any internal circuitry.

Overview

# Apple iPhone 12 Pro Max Water Damage Repair Repair Guide Action-specific water damage repair walkthrough for the Apple iPhone 12 Pro Max. About 76 minutes across 18 steps. This DIY guide walks through water damage repair on the Apple iPhone 12 Pro Max (iPhone series phone). Before you open the device, confirm the exact model number on the Apple settings screen or rear housing so your replacement part matches the iPhone 12 Pro Max specifically—not a similar iPhone sibling. Most DIY techs finish this Apple iPhone 12 Pro Max water damage repair in about 76 minutes when parts and tools are ready. Difficulty is rated advanced for this model. Recommended tools for this Apple iPhone 12 Pro Max job: P2 Pentalobe screwdriver, Y000 Tri-point screwdriver, Phillips #000 screwdriver, Suction handle, Opening picks, Spudger, Precision tweezers, Soft ESD brush. Parts and supplies: 99% Isopropyl alcohol, iPhone 12 Pro Max display adhesive gasket, Microfiber cloth. Power the iPhone 12 Pro Max 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 Apple iPhone 12 Pro Max, 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

    Power off the iPhone

    1 min

    Press and hold the side button and either volume button, then slide to power off. Do not connect a charger to prevent shorting board components.

  2. 2

    Remove the pentalobe screws

    2 min

    Use a P2 pentalobe screwdriver to remove the two 6.7 mm screws located on the bottom edge of the device.

  3. 3

    Heat the lower display edge

    3 min

    Apply a heated iOpener or heat gun to the bottom edge of the phone for two minutes to soften the waterproof adhesive.

  4. 4

    Attach the suction handle

    2 min

    Place a suction handle near the bottom edge of the front display, just above the Lightning port.

  5. 5

    Slice the perimeter adhesive

    5 min

    Pull up on the suction handle to create a tiny gap, then insert an opening pick and slide it around the perimeter to slice the adhesive.

  6. 6

    Open the display like a book

    2 min

    Swing the display open from the right edge, resting it against a sturdy object to avoid straining the display cables.

  7. 7

    Unscrew the battery cover

    3 min

    Use a Y000 tri-point screwdriver to remove the four Y000 screws securing the main board bracket cover.

  8. 8

    Disconnect the battery cable

    2 min

    Use the pointed end of a spudger to gently pry the battery connector straight up out of its socket.

  9. 9

    Disconnect the display cables

    3 min

    Use a spudger to disconnect the OLED panel cable, digitizer cable, and ambient light sensor assembly cable.

  10. 10

    Separate the display assembly

    1 min

    Lift the display assembly away from the rear enclosure and set it aside on a clean work surface.

  11. 11

    Unscrew the logic board brackets

    5 min

    Remove all Y000 and Phillips #000 screws holding down the lower logic board and camera grounding brackets.

  12. 12

    Disconnect remaining board connectors

    4 min

    Pry up all remaining camera, charging port, and antenna flex cable connectors attached to the logic board using a spudger.

  13. 13

    Remove the logic board

    3 min

    Gently lift the double-stacked logic board out of the chassis, taking care not to snag any flex cables.

  14. 14

    Scrub corrosion with isopropyl alcohol

    10 min

    Submerge the logic board in 99% isopropyl alcohol and gently scrub all corroded areas using a soft ESD brush.

  15. 15

    Dry components thoroughly

    15 min

    Allow the logic board and housing components to air dry completely in a warm, dry area for at least two hours.

  16. 16

    Reinstall the logic board

    5 min

    Set the dried logic board back into the rear case and securely snap all flex cable connectors into place.

  17. 17

    Apply new display adhesive

    5 min

    Clean remaining adhesive from the housing rim with isopropyl alcohol, then align and adhere a new water-seal adhesive gasket.

  18. 18

    Reconnect and seal the display

    5 min

    Reconnect the display cables and battery last, replace the metal brackets, and firmly press the screen flush into the frame.

After your Apple iPhone 12 Pro Max water damage repair

Power the iPhone 12 Pro Max 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 Apple iPhone 12 Pro Max job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.

Keep learning

Explore more Apple iPhone 12 Pro Max repair context in the encyclopedia, or open related DIY guides.

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