820-02020 : 5V on DV, 20V on charger, no power

[dudipupan]

Ok, after removing UE501 (there was some corrosion on it I didn't see) the 1V25 rails are normal and I got 20V, 0.22A and stable PPBUS_AON on DC power.

 

[2informaticos]

Did you try DFU again?

Strange to get steady 3V8_AON with pulsing PPBUS_AON before...

 

[dudipupan]

yes i tried dfu again but it does not work...

 

[2informaticos]

Did you follow all the steps from DFU tutorial?

Try forcing the board in DFU with SV004/5.
Solder RV005 first, if not present.

 

[dudipupan]

Forcing th board in DFU worked. Maybe the keyboard is defective. But unforunately I can neither restore nor repair. It throws an "No such directory or file (NSPOSIXErrorDomain)" error...

 

[2informaticos]

Possibly bad SSD, damaged by liquid spill...

 

[dudipupan]

Okay bad luck for me, thank you for your help