Phone · Apple · iPhone 13 Pro Max
Apple iPhone 13 Pro Max Logic Board Repair
Logic Board Repair guide for the Apple iPhone 13 Pro Max
Before you begin
Tools
- P2 Pentalobe screwdriver
- Y000 Tri-point screwdriver
- Standoff screwdriver
- Suction handle
- Plastic opening picks
- Spudger
- Tweezers
- Fine-tip soldering iron
- Magnifying glass or microscope
Parts / materials
- 99% Isopropyl alcohol
- Rosin flux
- Desoldering braid
- Replacement display adhesive seal
Safety
- Discharge the iPhone battery below 25% before starting disassembly to avoid thermal events.
- Wear safety glasses while micro-soldering to protect against hot flux splatters.
- Use an anti-static wrist strap to prevent electrostatic damage to logic board components.
Overview
Step-by-step
- 1
Remove bottom Pentalobe screws
2 minUse a P2 Pentalobe driver to remove the two 6.8 mm screws located on either side of the Lightning connector.
- 2
Heat the front display edge
2 minApply a hot iOpener or heat gun to the bottom edge of the iPhone for two minutes to soften the waterproof adhesive.
- 3
Slice perimeter display adhesive
5 minAttach a suction handle to the lower screen, pull up firmly to create a gap, and slide an opening pick around the edges to cut the seal.
- 4
Open display to the right
1 minSwing the screen open gently from the left edge like a book. Rest it vertically against a stable object to prevent straining the ribbon cables.
- 5
Unscrew main connector shield
2 minRemove the three Y000 Tri-Point screws securing the metal cover plate over the battery and display connectors.
- 6
Disconnect the battery cable
1 minUse the flat end of a plastic spudger to pry the battery press connector straight up from its socket.
- 7
Disconnect display flex cables
2 minPry up the OLED screen and digitizer ribbon cable press connectors from the logic board.
- 8
Remove front sensor shield screws
2 minUnscrew the Y000 screws holding the upper sensor assembly shield and lift the metal plate out with tweezers.
- 9
Disconnect upper sensor flex cable
2 minPry up the ambient light sensor and earpiece flex connector, then free the complete display assembly from the chassis.
- 10
Eject SIM card tray
1 minInsert a SIM eject pin or thin paperclip into the hole on the side frame to pop out the SIM tray.
- 11
Disconnect rear camera module
3 minUnscrew the rear camera shield plate and disconnect all three camera flex connectors using a spudger.
- 12
Disconnect remaining board flexes
4 minCarefully detach the Lightning port, wireless charging coil, speaker, and antenna press connectors from the logic board.
- 13
Unscrew logic board standoff fasteners
3 minUse a specialized standoff driver to remove the raised standoff screws holding the logic board to the inner frame.
- 14
Extract the logic board
2 minGently pivot the logic board up from the bottom edge and lift it out of the rear case, checking for any caught flex cables.
- 15
Clean pad areas with alcohol and flux
3 minApply a drop of 99% isopropyl alcohol and flux to the target repair zone under magnification to clean solder pads.
- 16
Micro-solder damaged board traces or components
15 minUse a fine-tip soldering iron and desoldering braid to clear shorts or bridge broken traces with jumper wire.
After your Apple iPhone 13 Pro Max logic board repair
Power the iPhone 13 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 13 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 13 Pro Max repair context in the encyclopedia, or open related DIY guides.
