Bios Flashback issue

[minlian]

I updated my Asus Prime X299-A to Bios 1102 only to learn that Spectre and Meltdown patch degrade performance. Now I tried using USB Flashback to revert to Bios 0402. I inserted an usb containing Bios 0402 which is renamed as X299A.CAP into the Flashback port. I pressed the button for 3 seconds and the light started blinking. It wont stop even after half an hour. So I unplug the power button and restarted my pc. The Bios version remains the same and whenever I turn off my pc the flashback light keeps blinking. Help

 

[LTC8K6]

Was the USB formatted in FAT32?

 

[minlian]

Yes! Fat32

 

[LTC8K6]

Maybe try going back in a smaller step?

 

[minlian]

Can I deliberately crash my bios and use the crash free bios method to revert to the default Bios?

 

[LTC8K6]

I'd just leave it at 1102. Windows made a new patch that disables intel's fix, and you were unlikely to notice any performance loss anyway.

https://www.engadget.com/2018/01/29/windows-spectre-meltdown-unpatching/