Solved! G580 bios battrey replacement no start

[siminyabafana]

g580 after trying to reset bios battrey laptop not starting.webcam led on,power led on,i can hear hdd and fan turning on.but the screen remains black.after 4minutes laptop shuts down.i know there is n problem with the screen.anyone who can help me??

 

[webworkings]

If you opened it up to replace the battery it is possible you knocked the cable that connects the display either partially or fully loose, or even pinched it in something all of which would make the display have problems. I suggest going back in and checking this.

If it wasn't you who replaced the battery, then contact whoever did and have them resolve the problem.