HP EliteBook 640 G9 Bios password

[SMDFlea]

https://www.badcaps.net/forum/troubl...49#post3672349

[rasta24]

Could you help me unlock the password please?
hp elitebook 640 g9
sn: 5cd3214qmb

[Stefan Steff]

Thanks. You mean the AX211 or any other WiFi cards won’t ever work in this model? Even if there are no whitelist messages? I don’t get any errors on boot, it just behaves like there’s no card at all. Nothing in BIOS, diagnostics, or OS.

I was only talking about what I had encountered so far...
I'm 99.99% sure it's not a whitelist issue.
Post your BIOS dump and maybe someone has the knowledge to check it and see if it's a way to enable your WiFi card.

[dlareklami]

Thanks. You mean the AX211 or any other WiFi cards won’t ever work in this model? Even if there are no whitelist messages? I don’t get any errors on boot, it just behaves like there’s no card at all. Nothing in BIOS, diagnostics, or OS.

[Stefan Steff]

Hi everyone,

I have an HP EliteBook 640 14-inch G9 Notebook PC (SKU: 4D0Y7AV, IDS Base Model) that was factory-built without a Wi-Fi/Bluetooth module.
Now I need to use it with a standard Intel AX211NGW Wi-Fi 6E + Bluetooth 5.3 card, but the system doesn’t detect it at all, not in BIOS, not in HP Diagnostics, and not in the OS (Windows or Linux).
BIOS Feature Byte: 476J65bB7B7H7M7Q7W7m7saBaEaFapqauawbhcA
Build ID: 22WWRTCZ601#SABB#DABB
System Board ID: 897B

I’d like to request help to remove or bypass the WLAN whitelist / enable the WLAN interface in BIOS.

I think that your WiFi card is not supported with or without whitelisting...
If you have whitelisting problem then you must see some message at startup like:

Wireless module not supported.
The system has detected a Wireless module installed in the system is not supported. System halted. Please remove device and restart.
Bluetooth Module ID (704)
or
Wireless module not supported.
The system has detected a Wireless module installed in the system is not supported. System halted. Please remove device and restart.
WLAN Module ID (702)

or something similar...

[peste]

post merged...next time look for a thread with the name and model, motherboard model of the laptop, and post there, if you can't find it, then make a new thread..

[dlareklami]

Hi everyone,

I have an HP EliteBook 640 14-inch G9 Notebook PC (SKU: 4D0Y7AV, IDS Base Model) that was factory-built without a Wi-Fi/Bluetooth module.
Now I need to use it with a standard Intel AX211NGW Wi-Fi 6E + Bluetooth 5.3 card, but the system doesn’t detect it at all, not in BIOS, not in HP Diagnostics, and not in the OS (Windows or Linux).
BIOS Feature Byte: 476J65bB7B7H7M7Q7W7m7saBaEaFapqauawbhcA
Build ID: 22WWRTCZ601#SABB#DABB
System Board ID: 897B

I’d like to request help to remove or bypass the WLAN whitelist / enable the WLAN interface in BIOS.

[adamgouadma]

I noticed there's a lot of unlock request for this model HP EliteBook 640 14 inch G9
The patch won't work if the bios version is latest. use this bin flash both it won't work if you only flash the main you should Flash Both.
first boot press f10 apply factory defaults and restart, 2nd boot reset security settings to defaults and exit.
use BCU and put your original DMI.
frequently asked questions:
can i use this to my HP EliteBook 640 14 inch G9- yes

This is the both BID U75 and U86 its all you need.

Thank you, you are brilliant

[vilmar27@hotmail.com]

Hello,
Please, I really apreciate if you can help me with one more information.

I would like to save to reuse the Windows activation key from the old BIN file with issues so I can reinsert it later when tattoo with DMI after fix the System with new BIN file.

In the line 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 1D 00 00 00, it’s possible to locate the activation key, but to write it along with the DMU using the HP BCU tool, it requires a different format with the MS Digital Marker. Is there a way to locate this MS Digital Marker key in BIN file or convert it to that format?

Attached is a photo with the detail.

Best Regards,
Vilmar

[vilmar27@hotmail.com]

You need to recalculate the CRC word (last two bytes) of the modified Gbe region after changing the MAC address bytes.
The Checksum word (Word 0x3F, NVM bytes 0x7E and 0x7F) is used to ensure that the base NVM image is a valid image. The value of this word should be calculated such that after adding all the words (0x00- 0x3F) / bytes (0x00-0x7F), including the Checksum word itself, the sum should be 0xBABA. The initial value in the 16 bit summing register should be 0x0000 and the carry bit should be ignored after each addition.

Hello, Sfefan!
Again thanks a lot for help and explanation.

Please, have you some tools or easy type to recalculate the CRC and update the BIOS BIN file with changed MAC Address? (I tried to use the UEFI_Tools NE to extract the Gbe Region, change with Phyton acript attached, and after Rebiuld again, but is not easy....).

Or if I change only first two digits of MAC Address is not necessary to recalculate the CRC?

Example: From 7C:57:58:6C:F0:5A to 8C:57:58:6C:F0:5A (If I use this same BIN file to fix other unit I will need to change the MAC Address again to avoid conflit in the network enviorement).

Best Regards,
Vilmar

[Stefan Steff]

Hi, Stefan!
I would like to express my sincere gratitude for you help. After applying the modified BIN file, the onboard network card is now functioning perfectly😁

Please, I would be very grateful if you could explain what other changes are necessary—besides modifying the MAC address at line 00001000 for the NIC to work properly when I change the MAC address?

Best regards,
Vilmar

You need to recalculate the CRC word (last two bytes) of the modified Gbe region after changing the MAC address bytes.
The Checksum word (Word 0x3F, NVM bytes 0x7E and 0x7F) is used to ensure that the base NVM image is a valid image. The value of this word should be calculated such that after adding all the words (0x00- 0x3F) / bytes (0x00-0x7F), including the Checksum word itself, the sum should be 0xBABA. The initial value in the 16 bit summing register should be 0x0000 and the carry bit should be ignored after each addition.

[Radny Canoy]

try

Work like a Charm boss, Thank you so much, very much appreciated.

password is gone and company boot splash gone too, just a little work for DMI.

once again, thank You Sir!

[vilmar27@hotmail.com]

Here you go...

Hi, Stefan!
I would like to express my sincere gratitude for you help. After applying the modified BIN file, the onboard network card is now functioning perfectly😁

Please, I would be very grateful if you could explain what other changes are necessary—besides modifying the MAC address at line 00001000 for the NIC to work properly when I change the MAC address?

Best regards,
Vilmar

[danito]

Good Day everyone.. i hope someone will help.

it has Bios Password and company Splash Logo.

any help is much Appreciated.

HP EliteBook 640 G9
SN: 5CD3221GNH
PID: 7P955PC#UUF

Attached is the Main Bios

try

[Radny Canoy]

Good Day everyone.. i hope someone will help.

it has Bios Password and company Splash Logo.

any help is much Appreciated.

HP EliteBook 640 G9
SN: 5CD3221GNH
PID: 7P955PC#UUF

Attached is the Main Bios

[vilmar27@hotmail.com]

Here you go...

Thanks a million! I'll test it later today.

[Stefan Steff]

Hello, Stefan!
Thanks a million.

The Main+EC Bin files that worked fine are from the below link that I download.

Files download: https://www.badcaps.net/filedata/fetch?id=3672350
- HP EliteBook 640 14 inch G9 U75 CLEAN UNLOCKED MAIN+EC.zip (26.59 MB, 89 views)

I want chage the MAC Address 7C:57:58:6C:F0:5A from these BIN to my MAC Address: 48:CA:84:9B:FE:AC

Have a great day!
Vilmar

Here you go...

[vilmar27@hotmail.com]

Post your BIOS dump that actually working right now in your laptop and the MAC address what you want to have.
I will try to fix it.

Hello, Stefan!
Thanks a million.

The Main+EC Bin files that worked fine are from the below link that I download.

Files download: https://www.badcaps.net/filedata/fetch?id=3672350
- HP EliteBook 640 14 inch G9 U75 CLEAN UNLOCKED MAIN+EC.zip (26.59 MB, 89 views)

I want chage the MAC Address 7C:57:58:6C:F0:5A from these BIN to my MAC Address: 48:CA:84:9B:FE:AC

Have a great day!
Vilmar

[Stefan Steff]

Hello,
Please, someone could help me?

I used the below Main Bios + EC that rex98 shared for fix one Notebook Serial BRJ32683B7 HP 640 G9 with BIOS issues.

Files: HP EliteBook 640 14 inch G9 U75 CLEAN UNLOCKED MAIN+EC.zip

After applied these files Main+EC in the unit it Works very well, but I need change the MAC Address. And when I changed the line 1000 of Main BIN file with new MAC Address and re-applied these files in the Main + EC Chip the NIC stoped works with erro code 10.

Attached the Picture.

Best Regards,
Vilmar

Post your BIOS dump that actually working right now in your laptop and the MAC address what you want to have.
I will try to fix it.

[vilmar27@hotmail.com]

I noticed there's a lot of unlock request for this model HP EliteBook 640 14 inch G9
The patch won't work if the bios version is latest. use this bin flash both it won't work if you only flash the main you should Flash Both.
first boot press f10 apply factory defaults and restart, 2nd boot reset security settings to defaults and exit.
use BCU and put your original DMI.
frequently asked questions:
can i use this to my HP EliteBook 640 14 inch G9- yes

This is the both BID U75 and U86 its all you need.

Hello,
Please, someone could help me?

I used the below Main Bios + EC that rex98 shared for fix one Notebook Serial BRJ32683B7 HP 640 G9 with BIOS issues.

Files: HP EliteBook 640 14 inch G9 U75 CLEAN UNLOCKED MAIN+EC.zip

After applied these files Main+EC in the unit it Works very well, but I need change the MAC Address. And when I changed the line 1000 of Main BIN file with new MAC Address and re-applied these files in the Main + EC Chip the NIC stoped works with erro code 10.

Attached the Picture.

Best Regards,
Vilmar