LENOVO (IBM) Bioses, especially Thinkpad.

Discussion in 'BIOS Mod Requests. Post Requests Only' started by ancestor(v), Jun 17, 2009.

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  1. Gilgamesh_7

    Gilgamesh_7 MDL Junior Member

    Apr 7, 2012
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    #8641 Gilgamesh_7, Jul 13, 2018
    Dears @ MDL;

    Peace be upon you;

    I would be grateful if someone could show me how to downgrade the bios of Lenovo ThinkPad T430 from v2.66 or higher to v2.65 or lower;

    I would appreciate if the downgrade procedure is shown step by step for future reference.

    Many thanks in advance.
     
  2. Karmaris

    Karmaris MDL Novice

    Jul 9, 2018
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    #8642 Karmaris, Jul 14, 2018
    I don't know about the T430 but on the X220 you can downgrade sequentially, so you download and install the previous version of bios to what you have installed now
     
  3. lepekinoi

    lepekinoi MDL Novice

    Oct 17, 2016
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    #8643 lepekinoi, Jul 14, 2018
  4. Serg008

    Serg008 MDL BIOS/EFI Guru

    Feb 23, 2010
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    #8644 Serg008, Jul 14, 2018
    First,you must make dump of the bios with SPI flash programmer, (2-nd) upload it for modification, (3-rd) flash modified bios
     
  5. pawel74787

    pawel74787 MDL Novice

    Jul 12, 2018
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    #8645 pawel74787, Jul 14, 2018
    Witam, mam problem z instalacja dysku ssd mSata w moim Lenovo x201 tablet, bios nie widzi dysku, czy istnieje zmodyfikowany bios do update ?
    Mój BIOS 1.40 6QET70WW 1.15
    Proszę o pomoc
     
  6. cloq

    cloq MDL Novice

    Aug 30, 2009
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    #8646 cloq, Jul 14, 2018
  7. Serg008

    Serg008 MDL BIOS/EFI Guru

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    #8647 Serg008, Jul 15, 2018
  8. derricksrs

    derricksrs MDL Novice

    Apr 27, 2013
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    #8648 derricksrs, Jul 15, 2018
  9. Serg008

    Serg008 MDL BIOS/EFI Guru

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    #8649 Serg008, Jul 15, 2018
  10. karti

    karti MDL Novice

    Feb 9, 2014
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    #8650 karti, Jul 15, 2018
  11. Serg008

    Serg008 MDL BIOS/EFI Guru

    Feb 23, 2010
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    #8651 Serg008, Jul 15, 2018
  12. cloq

    cloq MDL Novice

    Aug 30, 2009
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    #8652 cloq, Jul 15, 2018
  13. Serg008

    Serg008 MDL BIOS/EFI Guru

    Feb 23, 2010
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    #8653 Serg008, Jul 15, 2018
  14. cloq

    cloq MDL Novice

    Aug 30, 2009
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    #8654 cloq, Jul 15, 2018
  15. Serg008

    Serg008 MDL BIOS/EFI Guru

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    #8655 Serg008, Jul 15, 2018
  16. cloq

    cloq MDL Novice

    Aug 30, 2009
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    #8656 cloq, Jul 15, 2018
    Last edited: Jul 15, 2018
  17. Serg008

    Serg008 MDL BIOS/EFI Guru

    Feb 23, 2010
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    #8657 Serg008, Jul 15, 2018
    Thanks for the feedback
     
  18. cloq

    cloq MDL Novice

    Aug 30, 2009
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    #8658 cloq, Jul 15, 2018
    Do I need to be concerned about the checksum error?

    Thank you for the patch fix.
     
  19. Serg008

    Serg008 MDL BIOS/EFI Guru

    Feb 23, 2010
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    #8659 Serg008, Jul 16, 2018
    After the reboot, the checksum error message no longer appears?
     
  20. cloq

    cloq MDL Novice

    Aug 30, 2009
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    #8660 cloq, Jul 16, 2018
    Last edited: Jul 17, 2018
    Correct.

    Checksum error only appears while flashing the bios (when executing flash.bat).
     
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