Lenovo Thinkpad T540P/T440P - Power Cycles ? (NM-A131)

[AccountSaver]

Hello to all,

Laptop that was turning on ,after liquid damage into the keyboard section, cleaned the traces chips etc. without any problem, it started again , swapped keyboard, all went fine.

It had SVP password, so i tried to autopatch the tool, to remove the password and started power cycle.
I had backed up the original bios dump ,and restored it on it. but now it refused to turn on.

You see power light, fan spin , and as soon as it spins, it shuts and restarts again.

Don't know where to start checking...

[AccountSaver]

Re: Lenovo Thinkpad T540P/T440P - Power Cycles ? (NM-A131)

The good thing is that for the particular laptop i have , x4 motherboard donor. So i may be able to repair it.
If i can figure what is wrong with it.
Where should i start ?

[SMDFlea]

Re: Lenovo Thinkpad T540P/T440P - Power Cycles ? (NM-A131)

is there a tamper switch

[AccountSaver]

Re: Lenovo Thinkpad T540P/T440P - Power Cycles ? (NM-A131)

is there a tamper switch

Yes, i have |stick| it , and it's closed just to be sure.

Here is a video
https://streamable.com/a7nle4

[SMDFlea]

Re: Lenovo Thinkpad T540P/T440P - Power Cycles ? (NM-A131)

Post your original password locked bios backup in the bios requests section

[Maxpower3]

Re: Lenovo Thinkpad T540P/T440P - Power Cycles ? (NM-A131)

sorry i got the wrong thread, it was for this one
https://www.badcaps.net/forum/showth...85#post1161385