Recently upgraded BIOS of my UX582 to 305. It came with Windows Update.
Although, the upgrade went smoothly and at first I didn't noticed any problem until I disconnected the power cord. Few seconds later it froze. Long story short, I reset BIOS, did a clean cloud recovery reinstalled everything, updated to latest drivers. As soon as the laptop switches to battery it freezes.
BIOS 301 didn't have any problems but EZ tool doesn't let me downgrade.
A workaround I found - is by disabling NVIDIA card before using it of battery. Tried DDU and older drivers, same thing.
Support says to send it for repair, but this laptop has already been into repair two times (in less than a year) and I just can't do that right now as I need it for work. But seriously, why can't they provide instructions on downgrade? Or maybe there is some beta bios?
Solved! Go to Solution.