HP Elitebook 840 G2

[peste]

Re: HP Elitebook 840 G2

hi
Please unlock this file or I
thank you

https://www.badcaps.net/forum/showthread.php?t=79956

[zakeric]

i need help bios hp elitebook 840 G2

i need help bios hp elitebook 840 G2

backup

[peste]

Re: i need help bios hp elitebook 840 G2

i need help bios hp elitebook 840 G2

backup

see the post above ....

[x4ndr001d]

Re: HP Elitebook 840 G2

thanks bro

[aboumohamed]

Re: HP Elitebook 840 G2 LOCK

HP Elitebook 840 G2 BIOS to clean password

[SMDFlea]

Re: HP Elitebook 840 G2 LOCK

HP Elitebook 840 G2 BIOS to clean password

Rules https://www.badcaps.net/forum/showthread.php?t=103570 ->

BIOS guides, methods, resources and tools https://www.badcaps.net/forum/showthread.php?t=103526 ->

3. Password removal by laptop brand https://www.badcaps.net/forum/showpo...42&postcount=4 ->

3.6. HP
BIOS password is stored in NVRAM in the BIOS. BIOS editing and re-flashing is required.
You can use the automatic unlocker at: https://www.badcaps.net/forum/showthread.php?t=98539
Another tool that may also work: https://www.badcaps.net/forum/showthread.php?t=103184

[vkcomp]

Re: HP Elitebook 840 G2

I read all the 8 pages and posts and after several chip removal and reflashing i can say that i removed my HP Elitebook 840 G2 bios password.
To remove the password i removed the winbond chip and reflashed it but, the password still was there.After some tests i removed the MXIC ship and read it with the programmer.After that i used the HP Unlocker tool and unlocked the readed file from this chip.Then with the programmer i reflashed the MXIC chip with the new "unlocked" file.This procedure removed my bios password.

Thanks for your replies.

[Stranged]

Re: HP Elitebook 840 G2

thanks for the quick reply but the power led only blinks but machine does not power on...is it possible to the ec bin file too( the 2mb ) one?...thanks in advance

yea mine has orignal bios bin and EC bin behaving like that blinking power led cant turn it off when i used diff dumps got solid white led but still no display or fan spin

[peste]

Re: HP Elitebook 840 G2

yea mine has orignal bios bin and EC bin behaving like that blinking power led cant turn it off when i used diff dumps got solid white led but still no display or fan spin

rewrite the original EC bios and see what happens ..

[leofon]

Re: HP Elitebook 840 G2

Hello, I tried to flash the 25Q128A chip with several .bin files that I found in the pages of this thread until the clamp stopped reading it, I replaced the chip with a new one ordered from aliexpress, but I no longer have the original .BIN, can someone help me please
I am using CH341 programmer V 1.38, thank you very much!

[peste]

Re: HP Elitebook 840 G2

Hello, I tried to flash the 25Q128A chip with several .bin files that I found in the pages of this thread until the clamp stopped reading it, I replaced the chip with a new one ordered from aliexpress, but I no longer have the original .BIN, can someone help me please
I am using CH341 programmer V 1.38, thank you very much!

what model of motherboard do you have ???

[leofon]

Re: HP Elitebook 840 G2

what model of motherboard do you have ???

The board model is: 6050A2637901-MB-A02 HP elitebook 840 G2

[peste]

Re: HP Elitebook 840 G2

The board model is: 6050A2637901-MB-A02 HP elitebook 840 G2

try..

[leofon]

Re: HP Elitebook 840 G2

try..

Hello again Peste, with this firmware the equipment already turns on but the screen stays black and the fan is on, is there anything else I should do?

[peste]

Re: HP Elitebook 840 G2

Hello again Peste, with this firmware the equipment already turns on but the screen stays black and the fan is on, is there anything else I should do?

use one of these programs to write bios.
https://www.badcaps.net/forum/showpo...6&postcount=10
https://www.badcaps.net/forum/showpo...04&postcount=7

[leofon]

Re: HP Elitebook 840 G2

use one of these programs to write bios.
https://www.badcaps.net/forum/showpo...6&postcount=10
https://www.badcaps.net/forum/showpo...04&postcount=7

Thank you very much Peste, it worked using neoprogrammer, although there was something strange, the neo marked another model different from the ch341 programmer but in the end the laptop is already working, greetings from Mexico :salud:

[Xaviereins]

Re: HP Elitebook 840 G2

hello everyone I am a new member I have the ch341a programmer, I have an elitebook 840 I don't know what generation it is, the mainboard model is 6050A2637901-MB-A02 I tell you the original bios ic is damaged it was an MXIC MX 25L12873F, I replaced it with a ic WINBOND 25Q128JVSU, load an 840 g2 bios (I'm not sure it's that generation) but it doesn't give an image, please help me.

[peste]

Re: HP Elitebook 840 G2

hello everyone I am a new member I have the ch341a programmer, I have an elitebook 840 I don't know what generation it is, the mainboard model is 6050A2637901-MB-A02 I tell you the original bios ic is damaged it was an MXIC MX 25L12873F, I replaced it with a ic WINBOND 25Q128JVSU, load an 840 g2 bios (I'm not sure it's that generation) but it doesn't give an image, please help me.

try the bios from post # 153 and the programs from post # 155 ..

[Arsalan455]

Re: HP Elitebook 840 G2

ok try this and reply.
IF REMAINS PASSWORD SEND BOARD CODE.

late disply &red error bios not ok

[Tjaytony]

Re: HP Elitebook 840 G2

Hello guys, i have an hp 840 g2 that a customer brought in. it wont detect usb connection. i have troubleshooted the components relating to the usb. everything seems fine. now i realized that it initially detects usb connection then after the cmos reset reboot, it wont detect usb connection anymore.

so i decided to bring the case here, may be its bios error. here is my main and ec dump below.