My thinkpad won't turn on

[norax]

Hello,

I have a thinkpad T510, and had it for two years and a half. It was working fine ( I usually work with both battery and AC adapter plugged in) Last week, it wont turn on. I hit the power button and nothing comes out of it. when I plug the AC, it the battery button is on. I took it to the repair shop, and he had it fixed he didn't tell me what was the problem (he took the laptop to another shop so he didnt know what was the problem) Two days later, same issue. it wont turn on. What could be the reason?

I've noticed when it was fixed and I turned it the date was a day late. it was 3/2/2017 and it showed on screen 3/1/2017.

I've also tried hitting the power button 10 times with 1s interval then pressing it for 30s. still wont turn on.

 

[atljsf]

if they repaired it, it is under their warranty, should be 3 months for their repair, take to the shop and ask for good service