Lenovo Thinkpad T14s completely dead.

[Andreasbest]

Hello.
I received a T14s Gen1 ( NM-C891 motherboard ) that is completely dead, no indication of life at all.
I tried hard reset without RTC battery and short both pins of it for 1 minute but no luck.
Since it's type C connector i have no idea what to measure or where to inject voltage, so any advice are welcomed
Thank you in advance!


Schematic & boardview -> https://www.badcaps.net/forum/troubl...atic-boardview

[Andreasbest]

Solved.
SMDFlea close the thread please )

[mon2]

Post the fix for future readers.

[Andreasbest]

Nothing special.
After some 0v measurements and various type c chargers i inspect the type c charging connector with microscope.
There was some kind of corrosion on it, so with some contact cleaner everything are back to normal now

[mon2]

Excellent. Thanks.