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  • SMDFlea
    commented on 's reply
    https://www.badcaps.net/forum/troubl...68#post1793941

    Alternatively,compare with a hex editor.

  • hypermk735
    replied
    Hi does anyone know the correct way to remove a bios password off of a HP with a 32MB ec chip? I have 20 ProBook 450 G8 laptops that need to be unlocked for a client. I have had success in the past using RCunlocker from rhetoricalcheese on 840 G6 and 840 G5 but the tool only works on 16MB ec chips not 32MB.

    I could ask someone to unlock a bin file for me but I need to do this over 20 times so I need to learn the method.

    I have a working unlocked MAIN + EC bin from another laptop if that helps

    I tried to flash those working bins to a unlocked laptop and used some tool to change the dmi info to match the serial but the laptop doesn't boot so I assume I can't do it that way. Please help!

    Leave a comment:


  • James01
    replied
    Just wondering what file is missing and how to fix this problem .
    I have 4 HP probooks to remove the bios password

    Leave a comment:


  • ymifdal
    replied
    The charging LED being perm lit suggested to me that the bios isn't being read (faulty ic maybe)
    And so I've tried the one before once more with a new IC it worked fine. Thank you both for your help

    Leave a comment:


  • rex98
    replied
    Originally posted by ymifdal View Post
    Hi guys I'm struggling with unlocking this particular HP EliteBook 645 g9, this tool keeps failing to unlock
    I split the main bios the lower part is the one containing the PW it's 16MB so now I can use your script on it
    Well the file I get in the output is the same as the original, I compare both they're identical
    any suggestion how to clean it SN#5CD3291R3D MB: DAX9SFMB8A1 REV:A
    first boot press f10 reset bios to factory defaults and exit, 2nd boot reset security settings to daults and exit.
    you can disable permanently the absolute lock in BCU tool.
    here's your DMI info. use bcu:

    Serial Number: 5CD3291R3D
    Product Number: 6J5H9AV
    CT Number: PREBK068JIB04V
    Description: HP EliteBook 645 14 inch G9
    build_id: 22WWTPCZ601#SABF#DABF
    Feature Byte: 476J6S6b7B7H7M7Q7W7m7saBaEapaqauawbhcAfPguhKhkjhk8mEn7nWpDpFpnpqprqjqz.Hg
    MAC Address: BC-0F-F3-8A-2E-7F
    Attached Files

    Leave a comment:


  • ymifdal
    replied
    Originally posted by qayyum786 View Post

    At 1st boot press F10 and RESET BIOS to factory defaults, save, restart and password will go on. After that enter in to bios setup and in Main tab you have "set machine unique data" and write there what it's written on the label inside the cover.

    Or use this HP BCU TOOL ( BIOS Configuration Utility) to fill the DMI info
    The laptop is not booting anymore only charging LED is permanently lit
    what tool did you use? RCUnocker? IDK why it didn't work for me I'm confused

    Leave a comment:


  • qayyum786
    replied
    Originally posted by ymifdal View Post
    Hi guys I'm struggling with unlocking this particular HP EliteBook 645 g9, this tool keeps failing to unlock
    I split the main bios the lower part is the one containing the PW it's 16MB so now I can use your script on it
    Well the file I get in the output is the same as the original, I compare both they're identical
    any suggestion how to clean it SN#5CD3291R3D MB: DAX9SFMB8A1 REV:A
    At 1st boot press F10 and RESET BIOS to factory defaults, save, restart and password will go on. After that enter in to bios setup and in Main tab you have "set machine unique data" and write there what it's written on the label inside the cover.

    Or use this HP BCU TOOL ( BIOS Configuration Utility) to fill the DMI info
    Attached Files

    Leave a comment:


  • ymifdal
    replied
    Hi guys I'm struggling with unlocking this particular HP EliteBook 645 g9, this tool keeps failing to unlock
    I split the main bios the lower part is the one containing the PW it's 16MB so now I can use your script on it
    Well the file I get in the output is the same as the original, I compare both they're identical
    any suggestion how to clean it SN#5CD3291R3D MB: DAX9SFMB8A1 REV:A
    Attached Files

    Leave a comment:


  • hypermk735
    replied
    Originally posted by B Tree View Post
    there's a strong possibility that your main BIOS chip has become corrupted.I assume you tried a full power reset
    Yes I already tried a full power drain to try to recover the bios but no luck. Would you happen to know how I can get a clean bios for 840 G5 with MPM unlocked?

    Leave a comment:


  • B Tree
    replied
    there's a strong possibility that your main BIOS chip has become corrupted.I assume you tried a full power reset

    Leave a comment:


  • hypermk735
    replied
    Hi I am running into a problem with a HP 840 G5 that won't boot after using the tool. I have used the tool multiple times successfully before but for some reason this time it isn't. Heres the steps I did.

    - I desoldered the 16MB chip on the back of the motherboard and programmed it with RCUnlocker then soldered it back on
    - I attempted to boot the device and the speakers beeped at me and then I remembered I forgot to put the RAM back
    -I put the ram back in and then booted the laptop succesfully I tried to get to the bios to reset security settings but wasn't able to.
    - The bios said "completing last step of the bios update do not power off" after that finished the embedded controller security error showed up
    - The laptop then powered off and now it won't boot again. The caps lock blinks 5 times and the laptop won't power on anymore.

    I tried removing the 16MB chip and programming it again and soldering it back on again but now the caps lock is just a solid light, no blinking and the laptop does not turn on. I tried unplugging the cmos and draining the power but it did not do anything.

    Did the main bios chip get corrupt? I don't have a backup of the 32MB chip only the 16MB.
    Last edited by hypermk735; 03-25-2024, 03:55 PM.

    Leave a comment:


  • hayt
    replied
    Originally posted by RethoricalCheese View Post
    This is a multitool and unlocker for several series of laptops. Works on Windows. No python etc installing needed, all included in package. Everything is tested by myself but since every laptop is not made equally, there might be edge cases. Always VERIFY your file after reading!!!

    Unlocking
    HP - ProBook, EliteBook, ZBook (including 32MB models)
    Chromebooks from all various manufacturers
    Apple - everything older than T2
    More to come...

    Information display (helps to verify file integrity)
    HP - ProBook, EliteBook, ZBook (up to 16MB models for now)

    Custom logo removal
    HP - ProBook, EliteBook, ZBook (up to 16MB models for now)

    Usage: Drag and drop .bin file to .exe file.

    In case there are problems with unlocking your laptop, write a short description of the issue, upload original file and if possible, _unlocked.bin file aswell. Just crying for help is useless. Keep the topic as clean as possible.

    You may ask for feature requests, I'll see what I can do.
    TESTED TO UNLOCK BIOS ELITEBOOK 840 G7 THANK YOU VERY MUCH

    Leave a comment:


  • deeptenk
    replied
    Originally posted by mumserik View Post
    hey

    been using the tool for some years, but on my new computer i only get pyhton script error, really no matter what i do ..

    attached the dump if someone could patch it for me? Probook 450 G6,

    regards
    No problem
    Attached Files

    Leave a comment:


  • SMDFlea
    commented on 's reply
    RULES UPDATE for BIOS requests/offers AVOID BANNING, READ BEFORE POSTING
    https://www.badcaps.net/forum/troubl...before-posting

    You MUST:
    • Provide the full machine model number, serial number (or Service tag, SNID) and the board model number (see https://www.badcaps.net/forum/showthread.php?t=88758 ) ,The serial number, make, full model number, motherboard model and revision (except QR codes) must be written/typed at your request as per the rules. Not as a picture, part of the file name and so on.

  • mumserik
    replied
    hey

    been using the tool for some years, but on my new computer i only get pyhton script error, really no matter what i do ..

    attached the dump if someone could patch it for me? Probook 450 G6,

    regards
    Attached Files

    Leave a comment:


  • deeptenk
    replied
    Originally posted by peste View Post

    only password
    Thanks.

    Leave a comment:


  • peste
    replied
    Originally posted by deeptenk View Post
    RCUnlocker can disable computrace or only password?
    only password

    Leave a comment:


  • deeptenk
    replied

    RCUnlocker can disable computrace or only password?

    Leave a comment:


  • hoaca388
    replied
    Originally posted by RafiRiz29 View Post
    Hey I am trying to unlock an HP Elitebook 830 G7. I am very new to this, so are there step by step instructions on what to do in order to use this RCUnlocker?
    Drag and drop the file you want to unlock into the Rcunlocker.exe file.

    Leave a comment:


  • RafiRiz29
    replied
    Hey I am trying to unlock an HP Elitebook 830 G7. I am very new to this, so are there step by step instructions on what to do in order to use this RCUnlocker?

    Leave a comment:

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