Hi! I need some help!

Is there any chance some superman/woman can save my day?

X1 Extreme gen 1
20MF-000BUS
S/N R9-0SJR6C

unsuccessful BIOS update while cmos battery and internal battery were disconnected...

Hi!

I'm 33yd old with cs degree working u530 and t60 and t480 and x1 carbon 5th gen.
I have an x1 extreme gen 1 i thought died due to motherboard overheating in my backpack 1 year ago but it powered on when I removed the internal and cmos battery then I tried to update (ik) through lenovo system update and it froze at 62% possibly trying to update the bios to current 2024 version from 2022 version bios.
Now it's back to the prior behavior which was esc caps lock f1 f4 lights flash on which indicates it should be retraining the ram. Only one of my ram slots seems to be...