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Apple iPhone 16 Pro Max Logic Board Repair

Logic Board Repair guide for the Apple iPhone 16 Pro Max

Expert
~56 min
20 steps

Before you begin

Tools

  • P2 Pentalobe screwdriver
  • Y000 Tri-point screwdriver
  • Standoff screwdriver bit
  • Heat gun or hair dryer
  • Suction cup tool
  • Plastic opening picks
  • Spudger tool
  • Precision tweezers

Parts / materials

  • Replacement iPhone 16 Pro Max logic board
  • Replacement rear glass adhesive seal

Safety

  • Wear safety glasses to protect against potential glass fragments.
  • Always disconnect the battery before unseating or handling internal logic board components.
  • Keep track of screw sizes and locations to avoid damaging the new logic board during reassembly.

Overview

# Apple iPhone 16 Pro Max Logic Board Repair Repair Guide Action-specific logic board repair walkthrough for the Apple iPhone 16 Pro Max. About 56 minutes across 20 steps. This DIY guide walks through logic board repair on the Apple iPhone 16 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 16 Pro Max specifically—not a similar iPhone sibling. Most DIY techs finish this Apple iPhone 16 Pro Max logic board repair in about 56 minutes when parts and tools are ready. Difficulty is rated expert for this model. Recommended tools for this Apple iPhone 16 Pro Max job: P2 Pentalobe screwdriver, Y000 Tri-point screwdriver, Standoff screwdriver bit, Heat gun or hair dryer, Suction cup tool, Plastic opening picks, Spudger tool, Precision tweezers. Parts and supplies: Replacement iPhone 16 Pro Max logic board, Replacement rear glass adhesive seal. Power the iPhone 16 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 16 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 logic board repair for this model with tested parts and a workmanship warranty.

Step-by-step

  1. 1

    Power off device

    1 min

    Turn off your iPhone 16 Pro Max completely before starting disassembly to prevent electrical shorts.

  2. 2

    Remove pentalobe screws

    2 min

    Unscrew the two P2 Pentalobe screws located on the bottom edge on either side of the USB-C port.

  3. 3

    Heat the back glass perimeter

    3 min

    Apply heat to the rear glass edges for 2 minutes using a heat gun to soften the waterproof seal.

  4. 4

    Attach suction cup tool

    2 min

    Press the suction cup onto the lower portion of the rear glass and lift gently to create a small gap.

  5. 5

    Insert opening pick

    4 min

    Insert a plastic opening pick into the gap and slide it carefully along the bottom and side edges to sever adhesive.

  6. 6

    Open rear glass enclosure

    2 min

    Carefully swing the rear glass open to the right side like a book cover without straining attached flex cables.

  7. 7

    Remove battery connector bracket

    3 min

    Unscrew the Y000 tri-point screws securing the battery connector shield plate and lift it out.

  8. 8

    Disconnect the battery flex

    1 min

    Use a spudger to pry the battery flex cable directly straight up from its motherboard socket.

  9. 9

    Remove logic board shield cover

    4 min

    Unbolt the remaining tri-point screws holding the top metal EMI shield plate over the logic board and remove it.

  10. 10

    Disconnect camera and display flexes

    3 min

    Pry up the rear camera, sensor, and display flex connectors from the logic board using the pointed end of a spudger.

  11. 11

    Disconnect antenna coax cables

    2 min

    Use precision tweezers to lift the small antenna coaxial press connectors off their board terminals.

  12. 12

    Remove logic board standoff screws

    4 min

    Unscrew the internal standoff screws securing the top and bottom sections of the logic board to the frame.

  13. 13

    Extract the logic board

    3 min

    Gently maneuver the logic board out of the chassis, clearing any remaining cables or edges.

  14. 14

    Install replacement logic board

    3 min

    Lower the new logic board into position inside the phone housing, ensuring correct alignment with screw posts.

  15. 15

    Reattach logic board screws

    4 min

    Fasten all internal standoff screws snugly to anchor the logic board in place.

  16. 16

    Reconnect logic board cables

    4 min

    Snap the antenna coax, camera, display, and sensor flex cables securely onto their corresponding connectors.

  17. 17

    Reinstall upper shield cover

    3 min

    Position the top metal shield plate back over the board and secure it with the tri-point screws.

  18. 18

    Connect battery flex cable

    1 min

    Press the battery connector down onto the logic board socket until it clicks.

  19. 19

    Reinstall battery bracket

    2 min

    Place the battery cover bracket over the connector and tighten its tri-point screws.

  20. 20

    Seal and close rear glass

    5 min

    Apply new perimeter adhesive, align the rear glass, press down firmly around the edges, and reinstall the two bottom pentalobe screws.

After your Apple iPhone 16 Pro Max logic board repair

Power the iPhone 16 Pro Max back on and test the logic board 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 16 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 16 Pro Max repair context in the encyclopedia, or open related DIY guides.

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