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    Can I rollback to A09 without a usb jump drive?

    Discussion in 'Dell XPS and Studio XPS' started by wetcardboard, Jul 15, 2010.

  1. wetcardboard

    wetcardboard Notebook Consultant

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    For some reason I don't have in my posession a flash drive right now, but I'm tired of getting bad performance on the games I actually CAN play (that don't induce cpu throttling) so I want to go back from A10 to A09.

    Also what is the best place to call or best department to talk to If I want a replacement laptop?

    Thanks.
     
    wetcardboard, Jul 15, 2010
    #1
  2. Commander Wolf

    Commander Wolf can i haz broadwell?

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    Just find the A09 BIOS executable BIOS and run it... you don't need a USB memory stick.
     
    Commander Wolf, Jul 15, 2010
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  3. maxh

    maxh Notebook Consultant

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    Somewhere around here someone compiled all of the bios through A08 in a form that you can go backwards to. If you find that and install A08, then you can download A09 from Dell and install it.
     
    maxh, Jul 15, 2010
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  4. wetcardboard

    wetcardboard Notebook Consultant

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    You can't "update" to an older BIOS revision.
     
    wetcardboard, Jul 15, 2010
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  5. maxh

    maxh Notebook Consultant

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    maxh, Jul 15, 2010
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  6. nk290

    nk290 Notebook Consultant

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    The A09 BIOS is right on Dell's drivers page.

    Use this link

    Or go to Dell Drivers page and click on the A10 BIOS and there will be a link to other versions on the page.
     
    nk290, Jul 16, 2010
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  7. maxh

    maxh Notebook Consultant

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    As already mentioned on this page, you can't go from A10 to A09 with the file from Dell. It won't let you go backwards. If you use the file in the thread I posted to go back to A08 first, then you can use A09 from Dell's site to go forwards to A09.
     
    maxh, Jul 16, 2010
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  8. nk290

    nk290 Notebook Consultant

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    Ten Characters
     
    nk290, Jul 16, 2010
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  9. gpig

    gpig Notebook Deity

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    This is true. I've also done it myself. As far as I know, this is the only way to get back A09 for the XPS 1645.
     
    gpig, Jul 16, 2010
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  10. wetcardboard

    wetcardboard Notebook Consultant

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    But don't you need a flash drive using that method? Or was I reading that somewhere else...
     
    wetcardboard, Jul 16, 2010
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  11. error-id10t

    error-id10t Notebook Consultant

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    nope, no need.
     
    error-id10t, Jul 16, 2010
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  12. Brendanmurphy

    Brendanmurphy Your Worst Nightmare

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    No need to rollback ? Actually there is the A09 does not have the imposed thermal limit of 83c for the gpu so it won't throttle
     
    Brendanmurphy, Jul 17, 2010
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  13. error-id10t

    error-id10t Notebook Consultant

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    Yes, I know.

    I'm answering the question posted about 'needing a flash drive' for this method. So the answer 'Nope, no need' makes sense.
     
    error-id10t, Jul 17, 2010
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  14. Brendanmurphy

    Brendanmurphy Your Worst Nightmare

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    You do tho. You need to use the pheniox bios tool to downgrade to A08 first then just update normally to a09 so technically you do
     
    Brendanmurphy, Jul 17, 2010
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  15. error-id10t

    error-id10t Notebook Consultant

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    I know how this is done, I've done it. At no stage did I use flash drive. So you tell me what the technical part is that requires me to 'do tho'?
     
    error-id10t, Jul 17, 2010
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  16. Brendanmurphy

    Brendanmurphy Your Worst Nightmare

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    Seems i was wrong i just re read the instructions. Sorry bout that
     
    Brendanmurphy, Jul 17, 2010
    #16