Thiago Okada

Installed the leaked BIOS, it works! My Windows is still activated even if it show "Windows license: INVALID" on BIOS. And there is no watermark after a "Reset Keys" on BIOS.

Well, my desktop is pretty simple: https://www.dropbox.com/s/2319nk4fuirsqs1/Captura%20de%20tela%202013-10-22%2000.31.33.png The wallpaper with filename "初音ミク.jpg" is a workaround to a strange bug on Windows (if Chrome is the first application to show non-ASCII characters, all the other applications will not show any of them; so if you put a file with non-ASCII on your desktop the Explorer will be the first application to show them always and the bug will not be triggered). I don't know if they fixed this on Windows 8.1 (this happened on both Windows 7 and 8), maybe I should try to delete it. Well, and the "nice" text about SecureBoot is thanks to the new way Windows 8.1 manages SecureBoot. F#!"$ Microsoft!

I can't download this file, can someone please re-upload (or give me a explanation why I can't download this file)?

Maybe would be better to first update to Lenovo 8.00 official, if there is one.

Just for the info, the last firmware for Windows 7 versions (2.07) may trigger a bug where the notebook won't return from suspend (like described here: Y580 Windows 7 won't come out of Sleep FIXED SOLVE... - Lenovo Community). The problem is reported on Windows 7 but I can confirm it happens on Windows 8 and Linux too. Like said on that thread, you can fix it returning your BIOS to verion 2.06.