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Aon goes 12.35 to 12 to 0V in a loop 3V8_AON between 3.2/3.4V which secondary power supplies? Can't find any short

The resistor is 0 ohm. They have the same behavior, sorry

I have 2 test battery, don't know if they are charged. but does not seem to work. The reboot is instantly

Hello, got this MacBook for data recovery and was not water damaged. The usb-c amp switches to 20v and than reboots in a loop. Both the port have the same behaviour. Not able to but it in DFU. Kind of new model and don't know what to do or what to check. help please :)

R6851 present, U6850 not present on board

This stays just 0 all the time

??

TPAD_SPI_EN is present, 1.8V without trackpad. With trackpad connected it jumps 2 times from 0 to 0.3V ??

12 - 3.3 14 - 1.8 34 - 12.6 11 - 0 15 - 5 19 - 1.85

Good morning, I have an A2141 MacBook with trackpad just clicking and keyboard logically not working not water damaged. I found a black please inside the top let part of the trackpad connector. Replaced and also replaced trackpad, same issue. I replaced U8210 and U6860 without changes. All...

I noticed that screen was changed with a low quality one. Tested with original and the issue is gone. Can it be?

i fixed the issue with the UR300 installing the original one, so now screen acts normal again and I have just the issue of the trackpad and keyboard not working. Now both work in the alt menu, and not further in the booting or into the OS all the time. The lid sensor is not detecting the...

After changing 2 times all the cd3217, the issue was the U2890 board works :D

No error in diagnostic mode. if I try to boot from big Sur test external os at 2cm of loading bar fan spin high and restarts with the message your computer restarted because of a problem. Than boots fine into login Catalina installed on ssd.

Hello, I have a 16 inch MacBook Pro got it with bootloop at startup. At the first apple loading bar macbook was going off with high fan spin. I DFU restored with no issue and tried to install Sonoma. Downloaded with no issue and at less than half installation bar, the bootloop started. It...

Hello, I have a Macbook 16 inch stuck at 5V both the left ports UB400 - UB30 do bootloop The right ports U3100 - U3200 do not bootloop PPBUS is 12.29V PP3v3_G3H_RTC_X = 3.3V Which ports I have to replace? they are CD3217B12

Apparently UR300 is the issue, at the moment, probably I pressed it while working for the cable. I pulled the same chip from a spare board and looks different, and does not work. Any ideas?

AMR_RIGHT_OR_ND_1V8 is present Now the issue is constantly there, can not make the keyboard and trackpad working. PP5V_S2SW_IPD is 0.3V and slowly decreases to 0. Trackpad is clicking for the first 3 seconds and after booting not working. The lid sensor is not detecting the screen closing...

AMR_LEFT_OR_ND_1V8 is there the right one is hard to test because board is inside and to make the issue screen and keyboard needs to be connected. i noticed without the battery connected the closing lid sensor does not work. is that normal?

enable is missing. Going back I miss everything when issue is there so : P3V3_S2SW_IPD_EN missing IPD_PWR_EN_GATE missing P5VS2_PWR_EN missing IPD_PWR_EN missing PP1V8_AON_MPMU present can it be UC870 ? or it is U8100?