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Jeffotskie26

Jeffotskie26

Member
no liquid damage got 20v with 1.37amp freeze.
t2 chip getting warm.
no short on big coils
ppbus_g3h 12.3v
able to dfu mode but got this error (the system cannot be restored on this device (4005).)
PPBUS_G3H_SSD0 12.9v
P2V7NAND_PGOOD 0v 0.068ohms
PP2V7_NAND 0v 0.378ohms
PP1V8_SSD 0v 0.139ohms
PP0V9_SSD 0v 0.198ohms
SSD0_RESET_L 0v 0.498ohms
 
Last edited:
Jeffotskie26

Jeffotskie26

Member
update after i removed u9060 P2V7NAND_PGOOD leaked is gone
after i replace u9060 P2V7NAND_PGOOD 0.466ohms but still no voltage on all stated ssd volatges
 
2informaticos

2informaticos

Administrator
Staff member
Did you try DFU revive again?
Should bring back SSD voltages, if caused by T2 firmware corruption.
Supposing T2 is not damaged.
 
Jeffotskie26

Jeffotskie26

Member
dfu revive still same still no voltage on ssd.
it can be posible pm ic? or really t2? is the a way to check if t2 is really damaged?
can t2 damage is it replaceable?
 
Jeffotskie26

Jeffotskie26

Member
i have enough expirience doin iphone motherboards, board swap, nand ic upgrade etc. just not enough knowledge for macbook ssd compatibility.
 
2informaticos

2informaticos

Administrator
Staff member
If you have the time, then try it.
Better to use chips from donor board, same position for NANDs.
Will need to pass through DFU at the end.
 
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