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  1. #1
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    Question Crosshair VIII Impact, can't downgrade bios.

    My mistake, he has the ROG Strix X570-I Gaming.

    A friend of mine recently built a system based around this motherboard, he upgraded the bios to v3003 and his system is now completely unstable, whea errors, nvme corruption etc


    He wants to downgrade the bios but there is no flashback on this board, he has tried previous bioes using ezflash but nothing works, just get a message that it's not a proper bios etc.
    flash drive is fat32, mbr, bios is correctly named.

    Any idea how he can downgrade on this board as the latest bios has made his system unusable.
    Last edited by JohnEJohn; 12-26-2020 at 08:36 PM.

  2. #2
    ROG Guru: Grand Master Array Arne Saknussemm PC Specs
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    Quote Originally Posted by JohnEJohn View Post
    there is no flashback on this board
    There is in fact USB BIOS flashback...so just use that

    Maybe reflash latest BIOS with this method since it works fine on all impacts I've tried....

  3. #3
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    Quote Originally Posted by Arne Saknussemm View Post
    There is in fact USB BIOS flashback...so just use that

    Maybe reflash latest BIOS with this method since it works fine on all impacts I've tried....
    My mistake, he has the ROG Strix X570-I Gaming.

    Is there a way to downgrade without flashback?
    Last edited by JohnEJohn; 12-23-2020 at 04:24 PM.

  4. #4
    ROG Guru: Brown Belt Array RedSector73 PC Specs
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    All ROG boards have flashback and this is only way to downgrade BIOS.

  5. #5
    ROG Guru: Grand Master Array Arne Saknussemm PC Specs
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    Maybe download a fresh file of latest BIOS and reflash that

  6. #6
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    Sadly any fresh bios he tries just comes up as incompatible.

    Correct me if I'm wrong but there doesn't appear to be a flashback on this board, tthere is no flashback button on the back?

  7. #7
    ROG Enthusiast Array wyliec2 PC Specs
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    Quote Originally Posted by JohnEJohn View Post
    Sadly any fresh bios he tries just comes up as incompatible.

    Correct me if I'm wrong but there doesn't appear to be a flashback on this board, tthere is no flashback button on the back?
    Looking at the mobo manual for ROG Strix I, it does not appear to have flashback - no button or specified USB port.

    Are you sure the correct BIOS are being used ?? 3003 is an X570 Crosshair BIOS. Asus.com shows recent Strix BIOS as:
    3001 - 12/8/2020
    2816 - 11/25/2020 (beta)
    2813 - 11/05/2020 (beta)
    2802 - 10/23/2020

  8. #8
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    Quote Originally Posted by wyliec2 View Post
    Looking at the mobo manual for ROG Strix I, it does not appear to have flashback - no button or specified USB port.

    Are you sure the correct BIOS are being used ?? 3003 is an X570 Crosshair BIOS. Asus.com shows recent Strix BIOS as:
    3001 - 12/8/2020
    2816 - 11/25/2020 (beta)
    2813 - 11/05/2020 (beta)
    2802 - 10/23/2020

    Yeah he's using the correct bios, even sent me the links and they are correct, the confusion was my fault.

    He's tried every previously released bios on several USB sticks formatted in fat32 with an mbr partition, he just gets error messages when trying to flash the bios with ez flash that they aren't compatible etc.

    His only hope is a future bios release fixes the issue as it's unusable in its current state.

  9. #9
    ROG Guru: Brown Belt Array RedSector73 PC Specs
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    Quote Originally Posted by JohnEJohn View Post
    Correct me if I'm wrong but there doesn't appear to be a flashback on this board, tthere is no flashback button on the back?
    https://rog.asus.com/motherboards/ro...model/gallery/
    I see BIOS flashback button, right next CLR BIOS button.

  10. #10
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    1 - Don't upgrade to Zen 3 BIOS unless you have a Zen 3 chip, otherwise it's just unnecessary risk.

    2 - Don't upgrade to Zen 3 BIOS unless you have seen from community feedback that it works well, or make sure that you have USB Flashback to revert back.

    3 - If you don't know whether your board has USB Flashback or not, or you are unsure how to use it, you probably shouldn't be doing BIOS updates in the first place. Take it to a shop and have them do it for you. If there is a mistake, it's on them.. not you.

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