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Arrived with liquid damage and severe damage to J9600. Data is important.
Diode mode reading on pin 4 J9600 is 0L and donar board is 0.432. Repaired all other traces on J9600
Is data still saveable if U8600 is replaced from donar board?
This arrived with liquid damage around U3100/U3200 area.
Replaced U3100/U3200 from same donar board but no change. Amp meter is 5v 0.70amps
PPBUS_G3H 12.30V
All PMU and LDO voltages are present and it is not in DFU mode.
What should be checked next??
No liquid damage and board looks pristine. No audio even though sound can be adjusted from keyboard and under sound output MacBook Pro Speakers are listed as built in.
When playing a YouTube video the timer for the video progresses along with the captions but the video itself remains frozen...
Arrived with no liquid damage with PPBUS_G3H shorted. U1100 was shorted. Replaced U1100, PPBUS_G3H was no longer shorted and had boot current over 2 amps for a few seconds before C8010 burned and smoked. Replaced but now board is at 20v 0 amp draw. PPBUS_G3H was shorted again from shorted u7900...
I believe I found the issue one of the Renesas 225701C power ic chips is getting hot under thermal cam.
Do you know where I can purchase a replacement chip? Digi key and Mouser do not have it and the older M1 MacBooks use a different model Renesas chip.
As of today I cannot enter the options menu to access target disk mode or diagnostic now. As the power button is held I see the screen that says continue holding for startup options. I let go when it says loading startup options. Within a few seconds the screen goes black and the MagSafe light...
This has no liquid damage but has a issue of shutting down randomly. The error message the OS has a issue and needs to be reinstalled comes up.
While trying to backup data from target disk mode it will randoml;y shut down. When holding power button to try and turn it back on the mag safe light...