Bios update failure, now stuck with Blue screen of Death (How to Downgrade?)

[ericyang90]

Hello, I'm using a GA-Z97 HD3P mobo, and I was using F2 (default) version of BIOS.
I was going to upgrade the BIOS and realized I can upgrade it within Windows using some Smart Tool that came with it.
I just agreed to upgrade the BIOS and apparently it skipped F3 I think? and went to F4 directly (I might be wrong).
ANyway, the problem is after the upgrade of BIOS where window won't start at all and returned blue screen of death.

I was wondering if there's a way for me to downgrade the current F4 Bios back to default F2?
I can't access windows at all by the way.
Q-Flash setup with USB for F2 version won't work since it's outdated compared to the current version.

Thank you in advance!

[dmdilks]

Did you pull the battery and clear the cmos after you did the upgrade.

[ericyang90]

I didn't do it after the upgrade, but I did try it just now.
Unfortunately clearing cmos & pulling the battery out didn't work

[shadowsports]

I didn't do it after the upgrade, but I did try it just now.
Unfortunately clearing cmos & pulling the battery out didn't work

But you can enter the new BIOS now, yes?

Have you confirmed and re-saved settings? 

Then Windows blue screens after starting windows is displayed?  Any chance you can tell us what the error is?