HP EliteBook 840 G2 Notebook - BIOS

Discussion in 'BIOS/UEFI' started by technical, Aug 1, 2015.

HP EliteBook 840 G2 Notebook - BIOS 5 5 1votes
5/5, 1 vote

  1. technical

    technical Moderator Staff Member

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  2. nhan

    nhan Well-Known Member

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    giúp e xóa pass con này với ad
     
  3. nhan

    nhan Well-Known Member

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    nho ad xoa pass file nay dum em
     

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  4. Rodolfo Felix

    Rodolfo Felix Well-Known Member

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    Tengo los archivos del 840 G2 pero tienen Password se puede eliminar de estos archivos o cuales de las bios es la que ocupo si el modelo de la placa es 6050A2637901 - MB - A02 CHICLET
     

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  5. Eugen

    Eugen New Member

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    Hello Admin,

    can you remove the password from the file?
     

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  6. technical

    technical Moderator Staff Member

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  7. matrixms

    matrixms New Member

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    Sorry, but I have to post all story, cause I have multiple problem.
    First, I have elitebook 840 g2 without bios chip (removed from motherboard). So, I don't have original locked bios.
    Second, I bought few new (7-8) winbond 25q128fv chips in two stores and I have ch341 black programmer. Every single chip I bought had already some lines written on them ( I don't now how to explain, but you will understand). I can not full erase chip, do I have to do it at all?? I find a tons of bios files but not the single one can verify! All of them - 'chip main memory with the content are in disagreement' or something like that.
    Even this one you posted above.
    I never had that problem with any other chip. I do not know what I'm doing wrong.
    can you help me, please? It's urgent, and I'm desperate
     
    #27 matrixms, Jun 12, 2018
    Last edited: Jun 12, 2018
  8. technical

    technical Moderator Staff Member

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    That means you can not program the BIOS ?
     
  9. matrixms

    matrixms New Member

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    I write bios file, but when verify - 'chip main memory with the content are in disagreement'. Every single time with every chip I got ( 8 of them- new from two markets). And none of them was completely empty when I bought them, on first reading. I don't know if it's normal or not.
    It never happened to me before, with other chips.
    So, I do not know does winbond 25q128fv suposed to be fully empty and how to do it? Why every bin file I write on it - can't verify? Could you help me, please?
     
  10. technical

    technical Moderator Staff Member

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    I can not help, you need to check the connection, check the chip, check the programming tool.....
    Note: The BIOS file can not be faulted as above.
     
  11. matrixms

    matrixms New Member

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    Ok, sorry. I will buy another pack of chips. And another programmer.
    Could you tell me how to know which bios file is real one for hp elitebook 840g2 6050A2637901-MB-A02? How to be sure which is right one to my laptop, considering I do not have original locked bios? And, considering I have 'another bios' 'small bios' or 'ec bios' i don't now how you call it, should I have both bios files to be 'paired' ?
     
  12. technical

    technical Moderator Staff Member

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    Only check motherboard code and downloads BIOS same code and Programming.
     
  13. QuocKhanhLaptop

    QuocKhanhLaptop Well-Known Member

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  14. technical

    technical Moderator Staff Member

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    840 G2 Unpasss.BIN
     

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  15. ikapitale

    ikapitale New Member

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    plz unlock password bios from this file
     

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  16. technical

    technical Moderator Staff Member

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  17. ikapitale

    ikapitale New Member

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    thanks very much
     
  18. ikapitale

    ikapitale New Member

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    plz unlock password bios from this file with thank's
     

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  19. technical

    technical Moderator Staff Member

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  20. ikapitale

    ikapitale New Member

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    thank's very much Thienbui
     
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