[Trisquel-users] My T400 laptop restarts each 5 seconds

[lucmassa]

Hello to the Trisquel community. Months ago, I saved money and bought a T400  
laptop from Technoethicaland it worked better than I expected.

Nevertheless, a few weeks ago, I was studying with it but battery was running  
out, so I decided to suspend it. Many days after that, I plugged the adapter  
and I tried to turn the laptop on, but it started to do something very  
rare...

It turned on and five seconds later it turned off automatically. Five seconds  
after that it turned on again, all of that without my intervention. When this  
happens, the battery icon flickers and a circle with a kind of "Z" is on too.

I restarted the BIOS (Libreboot) by removing the NVRAM battery for 20 minutes  
but it didn't work. I was searching for T400 manuals. The only thing useful  
that I found is the hardware maintenance manual, but I didn't find anything  
useful there.

I would be very grateful if someone who had the same problem than me could  
tell me where can I find the solution.

Regards