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Apple iPhone 12 Pro Max Screen Replacement

Screen Replacement guide for the Apple iPhone 12 Pro Max

Difficult
~52 min
26 steps

Before you begin

Tools

  • P2 Pentalobe screwdriver
  • Y000 Tri-point screwdriver
  • Phillips #00 screwdriver
  • Suction cup tool
  • Plastic prying tools
  • Spudger tool
  • Tweezers
  • Heat gun or hair dryer

Parts / materials

  • Replacement iPhone 12 Pro Max screen assembly
  • Precut waterproof display adhesive frame strip
  • Isopropyl alcohol cleaning wipes

Safety

  • Discharge the iPhone battery below 25% before starting the repair to prevent accidental thermal runaway if damaged.
  • Wear protective safety glasses to safeguard your eyes from glass splinters if the original screen is cracked.
  • Keep track of each screw removed; placing a screw into the wrong hole can cause permanent logic board damage.

Overview

# Apple iPhone 12 Pro Max Screen Replacement Repair Guide Action-specific screen replacement walkthrough for the Apple iPhone 12 Pro Max. About 52 minutes across 26 steps. This DIY guide walks through screen replacement 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 screen replacement in about 52 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 #00 screwdriver, Suction cup tool, Plastic prying tools, Spudger tool, Tweezers, Heat gun or hair dryer. Parts and supplies: Replacement iPhone 12 Pro Max screen assembly, Precut waterproof display adhesive frame strip, Isopropyl alcohol cleaning wipes. 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 screen replacement for this model with tested parts and a workmanship warranty.

Step-by-step

  1. 1

    Remove Pentalobe Screws

    2 min

    Power off your iPhone completely. Use a P2 pentalobe screwdriver to remove the two 6.7 mm screws located on the bottom edge of the device.

  2. 2

    Heat Lower Edge

    2 min

    Apply a hair dryer or heat gun to the bottom edge of the phone for about two minutes to soften the display adhesive.

  3. 3

    Attach Suction Cup

    1 min

    Place a suction cup on the lower half of the display screen, positioning it just above the lightning port.

  4. 4

    Create Lower Seam

    2 min

    Pull up firmly on the suction cup to create a small gap between the screen assembly and the outer frame.

  5. 5

    Insert Opening Pick

    1 min

    Insert the tip of a plastic opening pick into the gap created at the bottom edge of the phone.

  6. 6

    Slice Bottom Adhesive

    2 min

    Slide the opening pick back and forth along the bottom edge to slice through the display waterproof adhesive.

  7. 7

    Slice Right Edge Adhesive

    2 min

    Move the pick around the bottom-right corner and slide it up the right edge to release the perimeter adhesive.

  8. 8

    Slice Top Edge Adhesive

    2 min

    Carefully slide the pick around the top-right corner and across the top edge, being careful not to insert it deeper than 3 mm.

  9. 9

    Slice Left Edge Adhesive

    2 min

    Slide the pick along the left edge of the phone. Do not slide deep near the upper-left, as critical display flex cables reside there.

  10. 10

    Open Display Screen

    1 min

    Gently swing the display open from the right side to the left side, opening it like a book.

  11. 11

    Unscrew Lower Connector Cover

    3 min

    Remove the four Y000 tri-point screws holding down the lower logic board connector shield.

  12. 12

    Remove Lower Cover Shield

    1 min

    Use tweezers to lift the lower metal shield off the logic board and set it aside.

  13. 13

    Disconnect Battery

    1 min

    Use the flat end of a spudger to pry the battery press connector straight up off its board socket.

  14. 14

    Disconnect Display Cable

    1 min

    Pry the main display panel connector straight up from the logic board using your spudger.

  15. 15

    Disconnect Touch Cable

    1 min

    Disconnect the touch digitizer cable connector from its socket on the logic board.

  16. 16

    Unscrew Upper Shield

    2 min

    Remove the three Y000 screws securing the upper sensor assembly cover bracket.

  17. 17

    Disconnect Sensor Assembly

    1 min

    Lift the upper metal shield out and pry the front sensor assembly cable off the board.

  18. 18

    Separate Display Assembly

    1 min

    Lift the entire screen assembly off the main body and place it face down on your clean workspace.

  19. 19

    Unscrew Earpiece Speaker

    3 min

    Remove the four screws (Y000 and Phillips #00) securing the earpiece speaker and sensor array to the old screen.

  20. 20

    Flip Earpiece Speaker

    1 min

    Use a spudger to gently flip the earpiece speaker down away from the top bezel.

  21. 21

    Unseat Front Sensors

    3 min

    Carefully slide a thin prying tool beneath the microphone, proximity sensor, and ambient light sensor to unstick them from the housing.

  22. 22

    Transfer Sensors to New Display

    3 min

    Position the earpiece speaker and sensor flex cable onto your replacement screen assembly, seating each sensor in its notch.

  23. 23

    Secure Sensor Screws

    3 min

    Fold the earpiece speaker back over the sensors and reinstall the four retention screws.

  24. 24

    Apply New Frame Adhesive

    4 min

    Clean remaining adhesive off the frame with isopropyl alcohol, then press the new precut adhesive seal into place around the rim.

  25. 25

    Reconnect All Display Cables

    3 min

    Plug the sensor assembly cable, touch cable, OLED display cable, and battery cable back into their board sockets.

  26. 26

    Reinstall Brackets and Close Phone

    4 min

    Reinstall both metal shield brackets with their screws, align the display to the upper frame, press it flat, and reinsert the lower P2 screws.

After your Apple iPhone 12 Pro Max screen replacement

Power the iPhone 12 Pro Max 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 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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