Lenovo g580 laptop is not starting

Chris_73 - Jun 3, 2016 at 02:53 AM

My lenovo g580 laptop is not starting up.When i press the start button webcam light comes up,battery light also show that its charging and ethernet port light also work but the screen is black..
I tried a lot of methods to startup it but couldn't start it..Earlier hard boot method worked in which you unplug battery and drain extra current and plug in to start..
Also,out of luck or chance,sometimes when i press power button it starts...otherwise many a times it wont.
Did anyone ever come up with such a problem,do help..

Edit:There is also a tuck sound when i hold power button to shut it down.What it means and how much will it cost to get it repaired????