HP EliteBook **70 Series BIOS Password Reset [Util Test]

Discussion in 'BIOS Mods' started by Mazzif, Sep 12, 2014.

  1. LatinMcG

    LatinMcG Bios Borker

    Feb 27, 2011
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    #321 LatinMcG, Jul 18, 2019
    Last edited: Jul 18, 2019
  2. Adams__23

    Adams__23 MDL Novice

    Jul 18, 2019
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    Hi
    I trying understand the steps for unlook my 8470p to?
    The smc.bin that is mention is clean, need to be programmed, right?
    How can i do that?
    Please can programmer the .bin for me:
    Serial: CNU304BJ37
    UUID: 963B3146-631F-11E2-8286-07C65F06405A
     
  3. LatinMcG

    LatinMcG Bios Borker

    Feb 27, 2011
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    totally wrong.. computer BIOS.bin is for a programmer to write on chip..
    keep dreaming of the magical SMC.bin
     
  4. Fox1Lead

    Fox1Lead MDL Novice

    Jan 18, 2012
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    #324 Fox1Lead, Jul 30, 2019
    Last edited: Jul 30, 2019
    Hi, did anybody tried to reflash a Elitebook 840 G5?
    The Chip i sugest is an Winbond 25Q256JVEQ (8Pin Layout).
    Can this chip be moded with a raspi?
    Thanks ahead
     
  5. hhrocha000

    hhrocha000 MDL Novice

    Oct 18, 2013
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    Hello there,
    can anyone help me with Elitebook 9470m
    Serial: CNU338BB34
    UUID: 1AAC7E6B0850E4119DA9C5E6C00700A5

    Thanks
     
  6. LatinMcG

    LatinMcG Bios Borker

    Feb 27, 2011
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    yes.. make backup.bin first.
    its 3 volt.
    i use ch341a and works same.
     
  7. vidtay

    vidtay MDL Novice

    Aug 5, 2019
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    Hi Mazzif,

    Kindly help to generate password to unlock my bios password protected HP Elitebook 8470p, please?

    UUID: 6E2107698C5BE211956605C65F06E03E
    SN: CNU302B32L

    Thanks.
     
  8. Fox1Lead

    Fox1Lead MDL Novice

    Jan 18, 2012
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    could you post a link to ch341a
    so i buy the right one?
     
  9. Timurrr

    Timurrr MDL Novice

    Sep 14, 2018
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    Hi. I have hp zbook studio g5 with no password lock but persistence module permanently enabled.
    I dumped the content of mx25l256 in wson package and replaced “VSS2” Store” with a blank one from downloaded on product support page bios.
    Now computrace is permanently disabled but laptop asks to restore MUD data, however “restore” button is not active.
     
  10. Max Martinez

    Max Martinez MDL Novice

    Aug 9, 2019
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    #330 Max Martinez, Aug 9, 2019
    Last edited: Aug 20, 2019
    Hi,
    may i ask if its possible to remove bios pw without soldering ?

    HP8570p

    got finally a working MB for my 8570 from ebay but locked

    should i give it a try with the mazzif tool i bought some years ago ? but it is stated as not supported **70 models.

    br max

    Edit, no success with HPBR as expected, if i need to remove the chip, is there a tutorial i can follow for reprogramming and info for the needed files ?

    Update: no more need, got password from seller.....
     
  11. Max Martinez

    Max Martinez MDL Novice

    Aug 9, 2019
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    Hi,

    i am actually waiting for the clip beeing delivered, as i already have a raspberry Pi3 i would give it a try to read out the chip from 8570p.
    As i cannot post a picture actually, can anyone send a picture or schematic with the correct chip marked ?

    br max
     
  12. Fox1Lead

    Fox1Lead MDL Novice

    Jan 18, 2012
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  13. LatinMcG

    LatinMcG Bios Borker

    Feb 27, 2011
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  14. Fox1Lead

    Fox1Lead MDL Novice

    Jan 18, 2012
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    #334 Fox1Lead, Aug 31, 2019
    Last edited: Sep 2, 2019
    no this was all, after reinsert alot of errors occured, but after a bios reflash everthing was fine.
    no lock anymore.
    Thanks
     
  15. LatinMcG

    LatinMcG Bios Borker

    Feb 27, 2011
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  16. Timurrr

    Timurrr MDL Novice

    Sep 14, 2018
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    If anyone needs this information:
    I flashed bios using the same version as the one I took VSS2 part from, using hp application and it restored everything.
     
  17. MeRLiN4U

    MeRLiN4U MDL Novice

    Sep 17, 2019
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    #338 MeRLiN4U, Sep 17, 2019
    Last edited: Sep 17, 2019
    Great work with the bios utility, I have used it to reset some bios from old EliteBooks 8440 & even 8460p.
    Among them there was a EliteBook 8470p but the unlock tool did not work with it.
    I am very greatfull for the bios utility that you made because of your father & the was very nice & helpfull so he must be proud that you could do that.
    This is my first day here & I found you from the utility tool, the notebook works great but the bios is locked with a password.
    My sister is using it & I downloaded the newest bios for the 8470p but it did not install because it wanted a pass from the old bios & that I dont know who knows it.
    Some in here sended you an uuid etc & I dont know how that would help but here is all the numbers from my EliteBook 8470P.
    uuid: 6a33aec0-afc8-4580-87fa-8adca2c5e30a
    serial number: CNU32498JB & productnumber: B2G38EC#UUZ
    Great work & thanks /M
     
  18. Albo89

    Albo89 MDL Novice

    May 24, 2017
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    thank you @LatinMcG, the modded backup work, today have desoldered bios chip (clip not work very well),
    erased and reprogrammed chip.
    At boot, pressing f10, access bios without problem, restored default setting, and TPM chip reset.

    please, you could explain me better the VSS and NVRAM point (If possible with photos), because i don't find it in uefitool.
    thank you in advance, and for unlock notebook.
     
  19. ZeroVer

    ZeroVer MDL Novice

    Sep 25, 2019
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    Hi @Mazzif,i understand if you don't answer me but, which language you wrote your program and wich library, sorry for ask that