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Cant rollback BIOS

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I'm running Windows 7 64bit on a Dell 8500 XPS desktop.

I received a message from Dell alerting me that a critical update was needed for my system and that update was a BIOS update.
It went from A06 to A09.

I went ahead and installed it by using the supplied .exe file to flash the BIOS.

The new BIOS is causing all kinds of issues. Crashes, BSOD, hanging up during shutdown, driver crashes, etc.

I want to go back to the prior BIOS version, but I'm not sure how.

I downloaded the "A06.exe" BIOS flasher (installer) from Dell, but when I try to run it, I get a message saying "The BIOS version is the same as or lower than current BIOS version". The option for "Update" is greyed out - non selectable and the bold QUIT button is the only option.

How do I get past this? I need the older version to undo the problems the newer version has caused. I contacted Dell and they told me that the only way to change the BIOS is by the .exe file and I cant go backwards in versions. Is that true?

Help?

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