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

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

  1. xxJasonxx

    xxJasonxx MDL Novice

    Dec 15, 2018
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    Hello. I need help in unlocking the HP Probook 455 G3
    UUID: 0B3A4698-2F58-11E6-A146-8D5D873010073
    SN: 5CD6234Z2X
    Thank you.
     
  2. psichonetics

    psichonetics MDL Novice

    Jun 12, 2015
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  3. LatinMcG

    LatinMcG Bios Borker

    Feb 27, 2011
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    #243 LatinMcG, Dec 26, 2018
    Last edited: Dec 27, 2018
    i use flashrom_ch341a.. the china soft doesnt always read past 16MB depending on version.
    i also use flashrom layouts to only flash specific area not whole chip if its OTP (one time programmable)
     
  4. ZBooker

    ZBooker MDL Novice

    Dec 5, 2018
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    As far as I understand this will open up the management programming mode, right? Furthermore it wont screw up the GbE region as you are just replacing the bios region?

    My problem is: I have replaced the motherboard of my ZBook, set the DMI infos BUT forget to set Intel AMT and locked the MPM. Therefor it is showing "not in committed state"...at least thats what people say.
    So the solution will be replacing the BIOS region with a stock one from an HP bios update?
     
  5. LatinMcG

    LatinMcG Bios Borker

    Feb 27, 2011
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    use uefi tool to see the region and their address and length to copy n paste in hexeditor
     
  6. ZBooker

    ZBooker MDL Novice

    Dec 5, 2018
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  7. LatinMcG

    LatinMcG Bios Borker

    Feb 27, 2011
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    its fine. u can also use a clean ME with Intel Easy Clean Me
     
  8. ZBooker

    ZBooker MDL Novice

    Dec 5, 2018
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    #248 ZBooker, Jan 2, 2019
    Last edited: Jan 2, 2019
    I have tried Easy Clean but the unit becomes very, very slow to boot and the error persists. Takes about 90s vs 10s before. Will give the ME region from the other dump a try in the evening.
     
  9. LatinMcG

    LatinMcG Bios Borker

    Feb 27, 2011
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    probably needs HP ME upgrade specific
    or from a bin with hexeditor.. address 3000 and full size select block. in uefi tool me size.
     
  10. ZBooker

    ZBooker MDL Novice

    Dec 5, 2018
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    Im a step further: I replaced the BIOS REGION with one from stock HP update which results in a MPM unlock - BUT on first boot I receive the message that "EC mismatch with configuration - going to restore system information"... any ideas?
     
  11. LatinMcG

    LatinMcG Bios Borker

    Feb 27, 2011
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    ec mismatch is version issue..
    bios region from wrong version.. try older bios
     
  12. ZBooker

    ZBooker MDL Novice

    Dec 5, 2018
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    Problem solved. A good samaritan cleaned my ME region properly :)
     
  13. Mazzif

    Mazzif Elitebook Pwner

    Oct 18, 2013
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    Still developing this although at a slower pace. I can say using region maps increases speed quite a bit. I have gzipped the binarys to save space. Also, I have moved to a ramdisk type setup where I copy the binarys into ram, make all the edits needed there and then flash from there. The speed increase is amazing!
     
  14. willko

    willko MDL Member

    May 14, 2008
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    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  15. Mazzif

    Mazzif Elitebook Pwner

    Oct 18, 2013
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    I cant speak to reader equipment you are using because I haven't used it myself.. On the topic of 8pin/16pin SOIC clips, I have tried quite a few different brands. I have had trouble with each and every one....except one. This one just plain works. The CPT-063 SOIC8 Pomona 5250. Costs a little more than others (~15$)...but it always works for me. I use this in a production type environment where I can see upwards of 50 laptops a week, So it get's used heavily. Contacts are heavier gauge than others and hold up to the abuse too.

    Try the Pi, its documented here pretty well, with pinout details, or I know Latin uses another setup with great success..He might be able to give other guidance.

    -Cheers
     
  16. Watson306

    Watson306 MDL Novice

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    Hi all,
    I posted this in the other page, and then discovered this one.
    Is it even possible without a Pi?

    Many Thanks