Laptop Screen Won't Turn on

celtic_warrior99

Estimable
Aug 8, 2014
85
0
4,610
Hi, I recently put a new hard drive in my Toshiba Satellite L850. But now when I start it I can hear it working and the lights are on, but the screen won't come on. I have put the old hard drive back in and it does the same thing. Any help is appreciated. Cheers :)