820-01521: No power

[macRepairAmb]

Have another board . Found and isolated a short to U7800. Once U7800 is removed, the short is gone. Short is on
PP3V3_G3H_PMU_VDDMAIN

My question is can i replace this chip with one from a seller from china or does this have firmware or files specific to the board model, which would mean i need to swap from another board of the same pn?

 

[2informaticos]

PMIC has lot of GPIO pins, look at page 65.
Not sure if all them are defined on its firmware, or have fixed pin designation.

If you decide to try new chip, let us know the result.