Hi,

I installed FSCN20WW bios update and the laptop doesn't boot any more, I even can not access to bios setup screen, just a black screen and keyboard backlights, is there a way to rollback bios? 

Thanks

Hi, i had same problem, thanks for tip. In my case, after pluging in hdmi, entering bios and switching switchable graphic to discrete,

laptop booting to system , then after restart working like always but amd igpu wasn't visible. So i tried to switch again to switchable

and computer working normally with both graphics cards. 

Thanks, the problem is solved! never gonna update lenovo bios again!

actually it was mentioned in the bios setup program that u should load the bios default setting before upgrade

i did it and bios upgraded successfully

Can anyone please share step by step to enter bios and reset it BLINDLY?

I don't have access to external tv, would like to reset bios to fix the problem

Example :

F2 rapidly > enter > down arrow 3 times > right arrow > enter 

This was a random guess, if anyone has working laptop, please check it for me 

Thanks

Nvm, manged to do it blindly,

Here's how you can do the same :

Shutdown your laptop

Power on then rapidly press F2

Now press down arrow 10 times to make sure you selected the option more settings and hit enter (one time was enough in my case, but just to be sure)

Now press F9 then press enter (factory reset)

Finally press F10 then enter (save and exit)

Everything should be back to normal now

Enter bios by shutting down your pc 

Turn it on and rapidly press F2

Arrow down key once then enter 

F9 key then enter 

F10 key then enter 

Problem solved ;)

Absolute life saver, dude. Can't thank you enough. 

I need someone to help me the same way but for a different legion model, y530-15ich I remember the bios version is InsydeH2O v.5 which is the version y520 also uses.