Hp elitebook 840 g5 bios password

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  • rddube
    replied
    Originally posted by madmanaic73
    Hi everyone,
    I have a HP 840 G5 that is admin password locked (abandoned from a company). I have been trying a good way to unlock it and reading up on almost the entire thread here it seems reading out the 32MB chip patching it with RCUnlocker is what most people say. I did this (was a Winbond 25Q256JVEQ chip) and to my surprise RCUnlocker told me that the 32MB file was not compatible and I should try a 16MB file. My two questions to anyone who could bring more insight:

    1. Is RCUnlocker indeed not compatible with 32MB BIOS files? It seems a lot of people have run it successfully
    2. Is it so that SOME 840 G5 are password locked in the 32MB BIOS and others in the 16MB? It seems very inconcistent.

    Thanks in advance!
    Read the previous post to yours. I mistakenly reported it as a Lenovo 840 G5 but it is an HP 840 G5. Good luck!
    Last edited by rddube; 01-27-2025, 09:11 PM.

    Leave a comment:


  • madmanaic73
    replied
    Hi everyone,
    I have a HP 840 G5 that is admin password locked (abandoned from a company). I have been trying a good way to unlock it and reading up on almost the entire thread here it seems reading out the 32MB chip patching it with RCUnlocker is what most people say. I did this (was a Winbond 25Q256JVEQ chip) and to my surprise RCUnlocker told me that the 32MB file was not compatible and I should try a 16MB file. My two questions to anyone who could bring more insight:

    1. Is RCUnlocker indeed not compatible with 32MB BIOS files? It seems a lot of people have run it successfully
    2. Is it so that SOME 840 G5 are password locked in the 32MB BIOS and others in the 16MB? It seems very inconcistent.

    Thanks in advance!

    Leave a comment:


  • rddube
    replied
    Ok, so figured it out and will post the solution in case someone has the same issue. Unlocking the 32MB file did not to the trick. Used RcUnlocker on the 16MB chip and that did the trick it is now unlocked. Many thanks to all of you and thanks Peste!

    Leave a comment:


  • rddube
    replied
    Not sure if this is important, but when I boot and press F10, before getting the Bios Administrator Password screen, I get this screen which say PROPERTY OF GHD then the HP logo and then the message Protected by HP Sure Start.

    I tried looking for the string "PROPERTY OF GHD" in both the 16MB and 32MB files but did not find anything. Not sure what to try next?
    Attached Files

    Leave a comment:


  • rddube
    replied
    Originally posted by peste

    try.. The 16 MB one remains the same.
    Hi Peste, no that didn't work this is the screen I get when hitting F10
    Attached Files

    Leave a comment:


  • peste
    replied
    Originally posted by rddube
    Hello everyone, need help in Bios unlocking this Lenovo 840 G5. I tried with the HP unlock tool on the larger Bios chip but it didn't work. So I am uploading both bios chips could anyone remove the bios lock? Many thanks!
    try.. The 16 MB one remains the same.
    Attached Files

    Leave a comment:


  • rddube
    replied
    Hello everyone, need help in Bios unlocking this Lenovo 840 G5. I tried with the HP unlock tool on the larger Bios chip but it didn't work. So I am uploading both bios chips could anyone remove the bios lock? Many thanks!
    Attached Files

    Leave a comment:


  • motanya
    replied
    Originally posted by m.sabry2110

    try
    Worked, thank you

    Leave a comment:


  • bibi019
    replied
    tHanks for tHe replay but tHe bios still locked it ask always for bios administrator password any Help

    Leave a comment:


  • hoaca388
    replied
    Originally posted by bibi019
    Hi all i need clean file for tHis bios dump Hp elitebook 840 g5. i5 8 generation sn 5CG92229D3
    yours
    emergency
    HP EliteBook 840 G5 Base Model Notebook PC
    Attached Files

    Leave a comment:


  • bibi019
    replied
    Hi all i need clean file for tHis bios dump Hp elitebook 840 g5. i5 8 generation sn 5CG92229D3
    yours
    emergency
    Attached Files

    Leave a comment:


  • m.sabry2110
    replied
    Originally posted by motanya
    Serial Number : 5CG8494FHJ
    Description : HP EliteBook 840 G5
    Password unlok​
    try
    Attached Files

    Leave a comment:


  • motanya
    replied
    Originally posted by rex98

    Here
    thanks but still has password

    Leave a comment:


  • rex98
    replied
    Originally posted by motanya
    Serial Number : 5CG8494FHJ
    Description : HP EliteBook 840 G5
    Password unlok​
    Here
    Attached Files

    Leave a comment:


  • motanya
    replied
    Serial Number : 5CG8494FHJ
    Description : HP EliteBook 840 G5
    Password unlok​
    Attached Files

    Leave a comment:


  • rex98
    replied
    Originally posted by cdma-india
    hi
    SerialNumber:5CG9459BTV
    ProductConfigurationID:6FQ87EC#ACJ
    Board CT Number:PGWHT00WBD01B4
    Name:HP EliteBook
    ProductName:HP EliteBook 840 G5
    FeatureByte:3X476J6S6b7B7H7M7R7W7m7saBaEapaqauawbUbhcAdUdpdqfPhKhkjh.Q3
    BuildID:17WWCSDT601#SACJ#DACJ

    please unlock this bios
    thanks
    first boot press f10 apply factory defaults and restart, 2nd boot reset security settings to defaults and exit.
    use BCU. you can permanently disable Absolute lock in BCU.​
    Attached Files

    Leave a comment:


  • cdma-india
    replied
    hi
    SerialNumber:5CG9459BTV
    ProductConfigurationID:6FQ87EC#ACJ
    Board CT Number:PGWHT00WBD01B4
    Name:HP EliteBook
    ProductName:HP EliteBook 840 G5
    FeatureByte:3X476J6S6b7B7H7M7R7W7m7saBaEapaqauawbUbhcAdUdpdqfPhKhkjh.Q3
    BuildID:17WWCSDT601#SACJ#DACJ

    please unlock this bios
    thanks
    Attached Files

    Leave a comment:


  • rex98
    replied
    Originally posted by ahmed100
    Hello
    Please unlock bios password HP Elitebook 840 g5 i7-8th

    Serial Number : 5CG8387F86
    Product Number : 2FA70AV
    Description : HP EliteBook 840 G5
    first boot press f10 apply factory defaults and restart, 2nd boot reset security settings to defaults and exit.
    use BCU. you can permanently disable Absolute lock in BCU.
    here's your DMI:

    Serial Number: 5CG8387F86
    Product #/SKU: 2FA70AV
    CT Number: PGWJB00WBBC11Z
    Description: HP EliteBook 840 G5
    BuildID: 17WWCSBT601#SUUG#DUUG
    Feature Byte: 3X476J6S6b7B7H7M7Q7W7m7saBaEapaqauawbUbhcAdUdpdqfXgdhKhkjh.4Q
    MAC Address : F4:39:09:E5:1A:5F​
    Attached Files

    Leave a comment:


  • rex98
    replied
    Originally posted by Yassoun75
    Hello, I need to remove the password on a Elitebook 840 G5.

    Prod ID 2FA66AV
    SN 5CG9236L4L
    motherboard C0796B10WEA rev1.11 (Full Intel, no dedicaced GPU)



    ThanX!
    first boot press f10 apply factory defaults and restart, 2nd boot reset security settings to defaults and exit.
    use BCU. you can permanently disable Absolute lock in BCU.
    here's your DMI:
    Serial Number: 5CG9236L4L
    Product #/SKU: 2FA66AV
    CT Number: PGWHT00WBCDPST
    Description: HP EliteBook 840 G5
    BuildID: 17WWCSCT601#SABF#DABF
    Feature Byte: 3X476J6S6b7B7H7M7Q7W7m7saBaEapaqauawbUbhcAdUdpdqhKhkjh.F5
    Attached Files

    Leave a comment:


  • ahmed100
    replied
    Hello
    Please unlock bios password HP Elitebook 840 g5 i7-8th

    Serial Number : 5CG8387F86
    Product Number : 2FA70AV
    Description : HP EliteBook 840 G5​
    Attached Files

    Leave a comment:

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