Aurora R15, BIOS downgrade blocked

To resolve issue with Intel 13th and 14th gen processors, Dell has released BIOS firmware version 1.16.0 with downgrade restriction.  Once you already update your system firmware, there is no downgrade allowed.

See the important information on the BIOS firmware page:

Once the BIOS is upgraded, you cannot downgrade the BIOS to earlier versions. BIOS downgrades are restricted when there are security updates and important fixes with earlier versions that impact the functionality of the system.  

@Chino de Oro​ bro before I tested it I was on 1.16 , rollback to the 1.14 through ctrl+esc , downgrade to 1.04 , boost my ram , update it to 1.17 , rollback again to 1.04 trying to overclock cp , again update to 1.17 , again all the same , and after last try I stuck on 1.17 . So ? 

@SaiIorMoon​ 1.17 downgrade is not allowed. There's no way around it.

@Vanadiel​ is anyone read what I’m said ? I do 2-3 times downgrade from 1.17 , but last time I stuck . So it’s should be some other way , if someone know please share it , but if not just skip this post . Thank you 

@SaiIorMoon​ I did read it:  I was trying before do that through the CTRL+ESC menu and it rollback my BIOS to older version (1.04) with out any problem

Which version did you roll back from, and did you use the same 1.17 BIOS updater as before, or did you redownload the BIOS 1.17 updater?

Find solution by myself , after everyone said it’s not possible 

Don’t wanna tell about this way, because dell can block this option , <Private data removed from public view. DELL-Admin> , private message 

It's not impossible to downgrade, just state the restriction imposed by certain firmware release requirements.

Mostly, one could perform BIOS recovery with a bridge firmware (some are floating around).  But you should not downgrade unless to restore your system performance.  Otherwise, you may cause damage to your 13th, 14th Intel processors by removing the patched BIOS firmware. 

@Chino de Oro​ all I need to downgrade just OC my ram back how it was working before , after I update back to last bios with fixed ram 

You better hope that one of the future firmware won't mess with your RAM settings again.  Also, you never have to use Dell warranty support as they will require to put your system back to OEM state for diagnostics, both hardware and software.

Still glad that you figured it out and put the patched firmware back.

@SaiIorMoon​ Can you please share how you performed the downgrade? I saw that your address details were removed in a later post, but please try again.

This is seriously upsetting. You spend a ton of cash for a "gaming pc" and Dell continously restricts it from being to operate like one... This is the last Dell computer I ever purchase! 

@prototypeculture​ In this specific case, downgrading the BIOS can permanently damage your CPU due to the issues with that generation of CPU.

So in this case, it's a good thing not to allow downgrades.

@Vanadiel​ if only it was good to still allow us to setup the non proprietary ram and avoid paying dell the 2-3x markup.