Hi there, this was a liquid damage with PPBUS shorted at u7430 (Pin 5 CPUGT_BOOT2_RC was burned shorted with ground along with pin 6 PPBUS_HS_CPU).
There was also minor corrosion at other spots like PMIC an TPS51980.
Replaced U7430 and short gone. Cleaned also corrosion everywhere.
The board is fully booting only in safe mode. Otherwise it will boot at 75% (progress bar) and just restarts, same thing with external MacOS.
Also it can boot windows with no issue. I can load the boot menu with option key or perform a recovery mode.
Tried to disconnect everything piece by piece nothing changed, (I/O, trackpad, keyboard, battery) only internal lcd left to try and use an external monitor.
Tried a successful DFU restore but nothing changed also. AHT test comes with no error found.
Should I conclude for another dead CPU?
There was also minor corrosion at other spots like PMIC an TPS51980.
Replaced U7430 and short gone. Cleaned also corrosion everywhere.
The board is fully booting only in safe mode. Otherwise it will boot at 75% (progress bar) and just restarts, same thing with external MacOS.
Also it can boot windows with no issue. I can load the boot menu with option key or perform a recovery mode.
Tried to disconnect everything piece by piece nothing changed, (I/O, trackpad, keyboard, battery) only internal lcd left to try and use an external monitor.
Tried a successful DFU restore but nothing changed also. AHT test comes with no error found.
Should I conclude for another dead CPU?
