820-00850 (A1989) - PPBUS_G3H looping

2informaticos

Administrator
Staff member
Same behaviour on all ports?
Usually meter restarts when the board try to start and smoething trigger SMC protection.
Check if starts in SMC bypass mode.
 

2informaticos

Administrator
Staff member
Press power button 5s and maintain it pressed.
Connect charger and release power button after 10s, or when you hear the fans starting.
 
Doesn’t work.

Edit: The USB-C voltage meter screen is only turning on/off when I have the cable for DFU mode restore connected to my MacBook (AC2).
Any idea?
 
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Any idea what else could be wrong?

Edit:

- 5V / 0.16A | PPBUS_G3H = 12.27V
- 19.4V / 0.04A | PPBUS_G3H is slowly going down from 5V to 0V

Did you ever seen such a behaviour?
 
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