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Safe mode does boot to setup screen (tried to wipe ssd and reinstall first) but everything responds very slowly. Everything responds normally in recovery mode. Passed diagnostic mode

This arrived with liquid damage that was ultrasoniced by another ship before arriving here. The board boots and goes to the login screen but after entering the password the progress bar loads and at one point the image disappears but backlight stays on. Nothing else happens. Using a good known...

If original NANDS from working board are put back but the transplanted T2 stays on the board and a dfu restore is performed can this compromise the ability being able to get the data from the other NANDS since T2 tied to data NANDs is used for the restore test ?

What do you mean by try first DFU as actually is? Should a different U4770 be used? Can the data on NANDs still be recovered if original U4770 is erased?

Trying to attempt a data recovery a 820-01700 board. The original board had a deep internal short on PPBUS_G3h but SSD power rails were not shorted. I transplanted the T2 chip T2 rom and all of the NANDs to a working board. During DFU revive the first two attempts the screen came on with apple...

Can I get a response if SOC_VDDSOC_SENSE is important ?

Yes but no luck. Is there a certain power rail that can be measured which can show if the M1 is at fault or not?

This arrived with a shorted T2. While replacing the T2 SOC_VDDSOC_SENSE pad was ripped but all of the other pads are good on the board. Board goes into DFU mode but while trying to restore I get the 4014 error code. Can that be caused by this one missing pad or could it be something else? Ive...

Also tried dfu mode but no luck getting it into dfu mode

This arrived with no liquid damage or power. When plugged in amp meter goes to 20v and up to .200amps stays there a few seconds and then power cycles. It appears all voltages appear before the power cycle. Only the heatsink gets warm under the thermal cam. What should be checked next?

Yes same errors. Solved and working now after replacing nands

No data needed

This arrived not booting into the OS. It is very slow booting and only boots into recovery stating the OS needs to be reinstalled. When trying to run first aid the attached errors appears. It is also impossible to get the board into dfu mode. Tried wire method as well. Does this look like a bad...

which specific things should be checked? Ive compared diode mode readings to both areas and everything matches

PPBUS_AON and 5V_S2 are stable power cycles on off on amp meter still occur on both ports. UF400 goes up to 0.104amps before cycling which takes several seconds however UF500 port just stays at 0v 0amp and cycles every other second

PCH_BATLOW_L 3.2V , PCH_RTCRESET_L 3V PCH_INTRUDER_L 2.7V L7690 3.3V

All u8100 and U7700 LDOS are present LC320 5.20V L5230 5.20V

no pulse on PM_SLP_S3_L when triggering PMU_ONOFF_L

no voltage on L7702 & L8102 board alone on the desk There is a drop pulse at PCH_PWRBTN_L

pp3v3g3s 3.3v PP1V8G3S 3.3V PP5VG3S 5V L7030 is 12v during the first few seconds of power but then drops to 7v and stays there until unplugged