Lenovo laptop shut down and will not turn on

Registration date
Thursday May 25, 2017
Last seen
May 25, 2017
- Updated on May 25, 2017 at 04:50 PM
Hi, today my laptop lenovo b570e was on charging and i was using it while on charging all of the sudden it completely shut down no slow off process like "shutting down Windows" all of the sudden it went in off state and now its no going to on.

Things i have already tried are put the battery out like for cool down and then i also tried using direct supply still it didnt on again....then i also tried pressing power button for 30 seconds it still didnt on.i put cooled battery back again still not on.

Please note that temperature was 40° and laptop was hot from the side of fans. Now its full cooled but still i'm not able to on it again.

I'm a freelancer need to complete projects if any of you can help me on this please ASAP.
Intel core i3
4gb ram
500gb Hardisk
Windows 7