l420

Lenovo ThinkPad L420 L421 L520 (BIOS 8GUJ17us) Whitelist Original (non modified) same version bios SHOULD be flashed at first. then, after reboot, flash modified bios Run the WinPhlash 32 or 64 bit, click "Advanced Settings" then check and uncheck the boxes so it looks like this: ("Flags"...