Hi, I found a laptop on the internet that someone was selling cheap, the reason for selling the laptop was that he tried to install the bios but it failed, since then the laptop does not work, only the keyboard lights up, the fans spin but there is a black screen, the laptop doing 7 beeps... idk how to fix the 7 beeps... is this 7 beeps cause bios are bad? Or this guy only lie, and he selling me laptop with broken cpu or cpu, or something??... 7 Beeps ! - Black screen, Keyboard lighting,Fans normal speed... Thanks !