Dell Vostro 3750 Bios Recovery

Discussion in 'BIOS Mods' started by toddhawaii, Apr 18, 2015.

  1. toddhawaii

    toddhawaii MDL Novice

    Apr 18, 2015
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    Aloha,

    I have Dell Vostro 3750 that suffered a failed BIOS update.

    Could someone walk me through the recovery process?

    Thank you,
    Todd
     
  2. LatinMcG

    LatinMcG Bios Borker

    Feb 27, 2011
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  3. toddhawaii

    toddhawaii MDL Novice

    Apr 18, 2015
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    #3 toddhawaii, Apr 18, 2015
    Last edited: Apr 19, 2015
    (OP)
    I tried win/fn + b, shift, end, but the computer powers up for awhile then shuts back down.

    Any other ideas?

    Thank you,
    Todd
     
  4. LatinMcG

    LatinMcG Bios Borker

    Feb 27, 2011
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    likely needs USB SPI programer to make backup.bin and fix it and flash it back. or get a full dump from a similar working bios pc.
     
  5. toddhawaii

    toddhawaii MDL Novice

    Apr 18, 2015
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    I'm pretty sure that it can be recovered. I just need to know the right keyboard command.
     
  6. sebus

    sebus MDL Guru

    Jul 23, 2008
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    I done the same with Vostro 3560 & never managed to recover it, replacement under warranty was the easiest option
     
  7. LatinMcG

    LatinMcG Bios Borker

    Feb 27, 2011
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    #7 LatinMcG, Apr 28, 2015
    Last edited: Apr 29, 2015
    im helping another user with 1564 and he got me backup.bin from SPI USB programmer and now i merged A10 to his bios and hes flashing to test.

    and it worked.
     
  8. fineart

    fineart MDL Novice

    Mar 31, 2015
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    Yes, i am the user with Dell 1564..... LatinMcG helped me out ! When i programmed my Bios chip it worked.
    @toddhawaii: You should try the same !
     
  9. sebus

    sebus MDL Guru

    Jul 23, 2008
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    So the procedure is.....

    Thanks

    sebus
     
  10. LatinMcG

    LatinMcG Bios Borker

    Feb 27, 2011
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    #10 LatinMcG, Apr 30, 2015
    Last edited: Apr 30, 2015
    get USB SPI Programmer like ch341a programmer.
    desolder chip and make backup.bin

    open it with HxD editor and compare beginning to 0001FFFF.
    if it matches mostly beginning then it should work= on backup.bin paste the bios dloaded. replace the broken bios code with new .. same exact address 0 to usually 0001FFFF
    file save as Test.bin
    flash and solder.