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DFU restore completes successfully however the board still does not fully boot

What secondary power rails should be checked?

12.34v

Yes, with F5200 removed there is no power cycling and both ports are 5v 0 amp

Only UF500 port cycles within two seconds with 0 amp draw while UF400 draws 0.150amps and takes several seconds to power cycle. Are you sure something in USB-C area does not need to be checked?

F5200 output pad 0.475 3V8_AON 0.323 3V3 0.376 5V_S2 0.258

12.33v with F5200 removed

Arrived with no power and only 5v with UF500 Port power cycling. Replaced UF500 and UF400 from good donar board but no change. DZF664 had a burn mark on it. Replaced it but also no change. PP3V3_AON i8s 0v. UF400 power cycles as well except stays at 0v 0amp What should be checked next?

U7000 has been changed several times from other donar boards. Should anything else be checked ?

Not detected

What should be checked next?

What should be checked next?

When connected to apple configurator 2 recovery or dfu does not work

Arrived with bad nands from bad U9580. Replaced nands and U9580 but pp1v8_ssd0 and pp0v9_ssd0 are 0v when battery is connected but when disconnected the voltages are normal. What can cause this? PPBUS_G3H is 12.60V with batteRY connected and disconnected.,

0.344

When first plugged in PPVIN_G3H_P3VG3H is 1.085v but after a few seconds slowly drops to 0v

yes 0v

changed u7000 from donor board but no change. Still 5v 0 amp

All coils compared looked good. Tried external switch method, ran dfu revive which finished with no errors however no changes

L7702 0.024 both boards. L8102 0.087 bad board 0.056 good board