Question mecer notebook screen black

[Czwe Malavies]

HI

I have a new mecer xpression z140c notebook. i changed the bios settings, then after save and exit the screen became just black, what is the problem and how to fix it.

 

[helpstar]

Which setting did you alter in BIOS?

Maybe connecting an external monitor can help

You can try pushing the power button for about one minute

Other than that you might need to reset the BIOS inside the laptop by removing the little battery for the CMOS