When you flash bios... Disabled option ''Keep DMI DATA'' ...
When you flashed the BIOS did you disable the Keep DMI Data option on the QFlash mainpage ?
It is important do not choose keep DMI Data. So disabled it.
Before flash a bios, make a clear cmos
How to make a Clear CMOS:
How to update a Bios....
And if you are able to go BIOS, After Flash Bios...
Make a Load Optimized Defaults