820-01987-A 20v no power

[yobad]

Hello,
I have this board stuck on 20V 0.150A then go to 0a
PPBUS G3H is 12.5v
P5VG3S is ok
P1v8G3S ok
P3V3G3S ok
PCH_RTC_RESET_ L ok
I can't enter DFU mode, not detected by the apple configurator, can't force with force DFU test point.
I don't know what to test next.
Any suggestions?
Thank you

 

[2informaticos]

Strange to get PCH_RTC_RESET_L high.
This suppose CPU core voltage is present; confirm that.

In such case, you should be able to enter DFU.
You need to try more times...

 

[yobad]

To force DFU, I have short force DFU test point with 1.8v ?

 

[2informaticos]

DFU Mode Restore (Macs) - LogiWiki

We have Apple MacBook and iPhone Diode readings and general fault finding information compiled by the leaders in this area

logi.wiki

I recommend to solder an external switch with 5-10cm wires instead.