Re: 820-01700 no power; P5VG3S_EN missing

This is the guide what I use:

Differential diagnosis for PP5VG3S_EN missing:

• Device stuck in DFU or Recovery mode.

• Corrupted T2 Firmware or corrupt T2 ROM.

• Failed T2 chip.

• Failed PMU (U7800).


➤Diagnostic Steps:

1. Check if the device is stuck in DFU or Recovery mode.

- Plug the MacBook into another Mac or MacBook via its master port (Left side, bottom port, closest to the trackpad) and open...