Lenovo g570 laptop not turning on

[sarath namburi]

On click of power button the fan spins for 5 seconds and then turns quiet and hard disk LED flashes continously but nothing happens.

 

[Svenieboy]

Did you do anything to the laptop or did it appear by itself?

 

[accyln]

i have same problem,
when i enter boot menu and change graphics option "Switchable" to "UMA" , problem is solving but amd graphics card not working.
is there hardware problem do you think? or amd driver problem?