820-00840 no boot!!

[phantom]

motherboard super clean...i don't know the history..

i have ppbus_g3h at 13v fluctuating

20v on both usb ports...

from power supply, it seems to reboot in loop like you can see her

Dropbox

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In this video you can see also the motherboard under thermal camera

 

[phantom]

i don't know what happen: now i have 5v on both ports...ppbus_g3h is 0v (no shorted)

with battery connected, .ppbus_g3h is 1,3v

3,3 1,1 1,8 present on both controllers but unstable....like in loop

display of amp meter power off and then on in loop after 4/5 seconds

SMC_RST is 3,0v unstable