overshoot
Member
That board came with a blown capacitor on PPBUS_G3H (C7430).
Replaced the cap and now the board boots but is stuck at the "critical software update" menu.
I've tried a different topcase with no screen (no camera) and same thing so confirmed to be a board related issue.
I don't have much experience with this fault other than knowing it's related to the T1 chip.
I've measured at the inductors next to U4200 and the 4 coils have voltages.
Anything I can try before assuming this is beyond my repair skills (I can't replace that T1 chip)?
Replaced the cap and now the board boots but is stuck at the "critical software update" menu.
I've tried a different topcase with no screen (no camera) and same thing so confirmed to be a board related issue.
I don't have much experience with this fault other than knowing it's related to the T1 chip.
I've measured at the inductors next to U4200 and the 4 coils have voltages.
Anything I can try before assuming this is beyond my repair skills (I can't replace that T1 chip)?