Acer Nitro 5 FH51M LA-J871P - Hangs when booting from USB/NVMe

[Varon23]

Sorry. translator
Hello. patient after another service
FH51M LA-J871P REV 1B board
i5-10300H

Bios replaced, VBios also. Apart from KBC because I have SAS REV 2.5 and I don't think this version will work.

I did a Hybrid and Chipset Reflow. Without changes.
I turned off NVIDIA by desoldering the power coils.
And basic elements such as RAM were replaced.
The problem is that it starts. you can enter the BIOS. However, when booting from a USB or NVME disk, the loading "circle" immediately freezes and remains there. or spouts random BS. Or it says Acer and that's it. Once it froze in the BIOS where the keyboard did not respond but the time continued.

I5-10300H resistances:
vcc_core: 2.1Ω
vccGT: 5.9Ω
vccSA: 18.2Ω
vccIO: 48.8Ω

[MOD EDIT] Link to schematic - https://www.badcaps.net/forum/troubl...a-j871p-rev1-0

Can anyone direct me where to look for the problem? Regards.

[Stevedb]

Check first and second mosfet for internal short

[Varon23]

But the laptop starts up. it only hangs during boot. I didn't know how to check SRJAU. so I ordered a second new one. I will replace it and see if it works.