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Remove bios password for HP ProBook 450 G3

Discussion in 'Help for Laptop/Desktop/Tablet repair' started by Administrator, Nov 29, 2018.

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  1. Gcs

    Gcs New Member

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    These are the bios'es for the HP probook 450 G5 that we have, which are locked.

    Thanks in advance for your amazing support. Much appreciated!!
     

    Attached Files:

    Gcs, Jul 18, 2020
    #21
  2. Administrator

    Administrator Administrator Staff Member

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    You unlock more then 3 in same day

    for another unlock i need more then 15euro

    please make payment here

    https://www.paypal.me/Biosfix/15eur

    thank you
     
    Administrator, Jul 18, 2020
    #22
  3. Gcs

    Gcs New Member

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    Yes, I understand. That is more then fair. I did the payment. Thanks again!
     
    Gcs, Jul 18, 2020
    #23
  4. Administrator

    Administrator Administrator Staff Member

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    Please try hp 450 g5 unlocked bios below and reply
     

    Attached Files:

    Administrator, Jul 18, 2020
    #24
  5. alexkj3841

    alexkj3841 New Member

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    What do you need to unlock my password bios?
     
    alexkj3841, Nov 8, 2020
    #25
  6. robertino

    robertino Member

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    laptop model please?
     
    robertino, Nov 8, 2020
    #26
  7. Administrator

    Administrator Administrator Staff Member

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    Administrator, Feb 12, 2021
    #27
  8. Jesca Namuddu

    Jesca Namuddu New Member

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    Hi, I have been charge but don’t have bios password yet for 450 g3 and 450 g2
     
    Jesca Namuddu, Jul 7, 2021
    #28
  9. Administrator

    Administrator Administrator Staff Member

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    PLEASE READ BIOS CHIP AND POSTA MAIN BIOS BACKUP HERE
     
    Administrator, Jul 7, 2021
    #29
  10. YiSuS

    YiSuS New Member

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    Hi, I need to unlock a BIOS from a HP Probook 450 G3 (S/N: 5CD6111LDB)(PKU: P4P54EA#ABE). Thanks.
     
    YiSuS, Jun 15, 2022
    #30
  11. Administrator

    Administrator Administrator Staff Member

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    plese read main bios chip with eeprom reader and post backup here
     
    Administrator, Jun 15, 2022
    #31
  12. YiSuS

    YiSuS New Member

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    Thanks for your reply. How I can do the reading?
     
    Last edited: Jun 15, 2022
    YiSuS, Jun 15, 2022
    #32
  13. sousuke

    sousuke New Member

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    HP ProBook 450 G3

    Please clear BIOS PASSWORD.
     

    Attached Files:

    sousuke, Mar 11, 2023
    #33
  14. Administrator

    Administrator Administrator Staff Member

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    Please try hp 450 g3 unlocked bios below and reply
     

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    Administrator, Mar 11, 2023
    #34
  15. Duane Bendt

    Duane Bendt New Member

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    Quick question, so as i do not think i am being stupid. I searched the motherboard and believe i found the EEPROM chip. I tried to connect my reader to it but it wont recognize the chip. after great pain i finally was able to get a picture of it that i could read (mostly) is this the BIOS chip? AH1353 258128CSIG E6R170?
     
    Last edited: Apr 16, 2023
    Duane Bendt, Apr 16, 2023
    #35
  16. Administrator

    Administrator Administrator Staff Member

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    Yes it is

    Try to read verify save 2 time without error
     
    Administrator, Apr 16, 2023
    #36
  17. Duane Bendt

    Duane Bendt New Member

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    HP ProBook 450 G3, please clear BIOS PASSWORD.
     

    Attached Files:

    Duane Bendt, Apr 18, 2023
    #37
  18. Duane Bendt

    Duane Bendt New Member

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    cannot seem to be able to erase the BIOS. I wonder if its a voltage setting. Or the software. Bu i tried two different programs.
     
    Duane Bendt, Apr 18, 2023
    #38
  19. Administrator

    Administrator Administrator Staff Member

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    try to flash original bios back and tell em if laptop work OK with it
     
    Administrator, Apr 18, 2023
    #39
  20. Duane Bendt

    Duane Bendt New Member

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    I dumped it twice, verified twice. compared the two files in a hex editor and they are exactly the same. I did try to write it to the chip (and the program said it wrote to the chip) and the system booted up. performed the 3.3v mod and the files are the same. In my mad rush i forgot i put a different chip in the reader. i read and verified two more times and compared to the file i uploaded. they match perfectly. tried another piece of software and it failed verification. I compared the new dump to all the older ones and they are different. i think it needs 1.3v
     
    Last edited: Apr 19, 2023
    Duane Bendt, Apr 18, 2023
    #40
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