Ask Lenovo E570 NM-B421 Turns on then off.

Can I please get some help, I can't figure this out.

Board: NM-B421
Model: Lenovo ThinkPad E570

Charger plugged in, flashes 3 times. Power button pressed, it turns on 2 seconds then off. Occasional fan spin slightly until it turns off again. Never more than 2 seconds.

Attached PDF shows readings I gathered.

Things tried:
Flashed 5 different BIOS files, original bios dump + 5 others linked, schematics and board readings are all here:
https://drive.google.com/drive/folde...US?usp=sharing

Here is the video of the fault:

Aditya11ttt says on a forum:
'In this board u don’t need to program io it will program auto , but still it’s a theory u should try to program and update me it’s done or not !!"

Attached also the image of the board with readings.

Anything else I can try? Thanks!