Laptop with blank screen

[Ajay Mathew]

My friend was updating his bios the laptop was lenovo g50 he downloaded the bios from official website he downloaded it by selecting the windows 7 operating system but the laptop was running windows 10 he updated the bios completely but after the restart it started showing blank screen what shall i do and how can i know what problem it is 

1 i checked the ram and hdd it was working fine and i installed the windows 7 by moving the hdd to another laptop but i am facing the same problem plz suggest me as soon as possible 

[LogicalDrm]

BIOS works independently of OS. Something has gone wrong with BIOS flash, the reason why its not recommended to beginners unless absolutely necessary. If the laptop is still under warranty, contact Lenovo's support and see if they can provide help.

[Ajay Mathew]

2 hours ago, LoGiCalDrm said:

BIOS works independently of OS. Something has gone wrong with BIOS flash, the reason why its not recommended to beginners unless absolutely necessary. If the laptop is still under warranty, contact Lenovo's support and see if they can provide help.

no the laptop is out of warranty i tried every thing but its not showing anything on the display

[Ajay Mathew]

Just now, Ajay Mathew said:

no the laptop is out of warranty i tried every thing but its not showing anything on the display

can i get the step how to flash the bios with the usb stick

[LogicalDrm]

39 minutes ago, Ajay Mathew said:

can i get the step how to flash the bios with the usb stick

Each BIOS handles it bit differently. I haven't flashed laptops, and rarely need to even access BIOS. If you can access BIOS, it should show hotkey to access flash menu. Manufacturers site should have readme for files used to flashing.