After i start the PC i get the error "No bootable device-insert boot disk"Can't acces boot menu nor bios

eleazarmoraru65

Prominent
Nov 4, 2017
2
0
510
So today i opened my laptop and i got this error at the beggining- "No bootable device- insert boot disk and press any key" . I tried removing the hdd and put it back , still didn't work. The thing is that my PC also won't enter boot menu nor bios menu. So i'm pretty much stuck at this point. I tried to plug in a usb so i can re install windows but i cannot acces anything. . I also tried to remove the HDD and leave only the AC adapter in. still didn't enter boot menu. Anyone got some ideas ? My laptop is Lenovo G560. Also when i try entering bios using Fn+f2 the screen goes black. if i press that again it comes back to the same error .