820-01041 No boot but 20V on usb-c

[2informaticos]

ALWAYS check PPBUS_G3H WITHOUT battery.
If battery is connected, PPBUS_G3H is automatically adjusted, accordingly with battery charge level.

Do you get SLPS2R voltages?
Try to put in DFU restore mode.

 

[raainxx]

i try to put in DFU but i have an error when i try to restore, i attach the message.
i have PP1V8_SLPS2R=1,78V , PP0V8_SLPS2R=0,8V but not PP1V1_SLPS2R=0V

 

[2informaticos]

"not PP1V1_SLPS2R=0V"
There is a problem then.
Check diode mode to ground first.

 

[raainxx]

sorry finally PP1V1_SLPS2R = 1,1V and PP0V9_SLPS2R=0,89V

 

[2informaticos]

Read more posts about DFU restore.
Many people complain, not easy to get it done so fast.
Try all the tricks they mentioned.

 

[raainxx]

I try again in DFU with another macbook pro, i have always the same error.