Hp elitebook 840 g9

[Dan20701]

After two days of messing around I finally figured it out, I no longer need help with my last post.

Thanks.

[maximilianus]

Need reset BIOS Administrator Password on the HP G9 840
Can it be read using the program or must the flash chip be desoldered? ?
Does anyone know which BIOS flash chip is in the G9 ?

the laptop works
When I enter the bios and want to make settings, it asks for a BIOS Administrator Password

Thanks

[peste]

Need reset BIOS Administrator Password on the HP G9 840
Can it be read using the program or must the flash chip be desoldered? ?
Does anyone know which BIOS flash chip is in the G9 ?

the laptop works
When I enter the bios and want to make settings, it asks for a BIOS Administrator Password

Thanks

You have to remove the chip from the motherboard...a video as an example..
https://www.youtube.com/watch?v=DWWigscuQDY

[magna1984]

HP Elitebook 840 G9
SN#5CG30121VX
6050A3417601-MB-A01

Please help me with bios password removal.

Thank you.

[alfredposadas09]

HP Elitebook 840 G9
SN#5CG30121VX
6050A3417601-MB-A01

Please help me with bios password removal.

Thank you.

here is your unlocked file

VERY IMPORTANT STEPS
1. GO TO BIOS AT FIRST BOOT (F10)
2. APPLY FACTORY DEFAULT SETUP
3. GIVING ME FEEDBACK IF IT WORKS MAKES ME HAPPY TO HELP MORE

[maximilianus]

What is the chip mark on the G9 840?
I want to know which programmer CH341A adapter i need

[alfredposadas09]

What is the chip mark on the G9 840?
I want to know which programmer CH341A adapter i need

mostly the chip is beside in the ram get it via DESOLDERING THE CHIP make sure to back up 4x since your programmer is not a good programmer

[magna1984]

here is your unlocked file

VERY IMPORTANT STEPS
1. GO TO BIOS AT FIRST BOOT (F10)
2. APPLY FACTORY DEFAULT SETUP
3. GIVING ME FEEDBACK IF IT WORKS MAKES ME HAPPY TO HELP MORE

Thank you so much. Password removed . Put all laptop information in. Only left "Cirrus Discrete Amp Calibration Data" , found some posts about. If you know easy way , please let me know .

[alfredposadas09]

Thank you so much. Password removed . Put all laptop information in. Only left "Cirrus Discrete Amp Calibration Data" , found some posts about. If you know easy way , please let me know .

just flash the original bios again

[ingenieroedu]

Hello, can anyone remove the password?
hp Elitebook 840 G9
with plate number: 6050A3417601 mb A01
sn/ 5CG3073T4G

[rex98]

Hello, can anyone remove the password?
hp Elitebook 840 G9
with plate number: 6050A3417601 mb A01
sn/ 5CG3073T4G

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: 5CG3073T4G
Product #/SKU: 692G6LT#ABM
CT Number: PQSPR00WBHQ2DV
Description: HP EliteBook 840 14 inch G9
BuildID: 22WWWPAT602#SABM#DABM
Feature Byte: 476J6S6b7B7H7M7Q7W7m7saBaEapaqauawbUbhcAdpdqfAfPgSguhKjhk8mEn7nVngnwpTpqqjqz.ft
MAC Address : 7C:4D:8F:EF:E8:0F

[ingenieroedu]

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: 5CG3073T4G
Product #/SKU: 692G6LT#ABM
CT Number: PQSPR00WBHQ2DV
Description: HP EliteBook 840 14 inch G9
BuildID: 22WWWPAT602#SABM#DABM
Feature Byte: 476J6S6b7B7H7M7Q7W7m7saBaEapaqauawbUbhcAdpdqfAfPgSguhKjhk8mEn7nVngnwpTpqqjqz.ft
MAC Address : 7C:4D:8F:EF:E8:0F

Thank you, it worked at first, it took a while to show the screen, then it gave me a bit of a problem with the cirrus code, but I was able to solve it, very grateful.

[ingenieroedu]

[CITA = rex98; N3284856]

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: 5CG3073T4G
Product #/SKU: 692G6LT#ABM
CT Number: PQSPR00WBHQ2DV
Description: HP EliteBook 840 14 inch G9
BuildID: 22WWWPAT602#SABM#DABM
Feature Byte: 476J6S6b7B7H7M7Q7W7m7saBaEapaqauawbUbhcAdpdqfAfPgSguhKjhk8mEn7nVngnwpTpqqjqz.ft
MAC Address : 7C:4D:8F:EF:E8:0F

time I have a problem, it starts up, shows the first screen, then it restarts and at that point it starts up, it's a little slow. I thought it might be an update, but it won't let me update the Intel Management Engine and also gives me a problem with an Intel Smart Sound Technology OED driver. Now sorry for my ignorance but it seems to be a ME region issue but I don't know if these 12 gen Intels can clear that region any help with this error

[ingenieroedu]

This is the problem that I am having when updating the bios. Maybe you can help me. Now, it has the SPI chip that is next to the ram memories and it has 2 others, one near the USB ports and another next to the nuvaton but I only extracted the SPI ones so if another one is required, let me know thank you very much hp Elitebook 840 G9 SPI.rar

[rex98]

This is the problem that I am having when updating the bios. Maybe you can help me. Now, it has the SPI chip that is next to the ram memories and it has 2 others, one near the USB ports and another next to the nuvaton but I only extracted the SPI ones so if another one is required, let me know thank you very much [ATTACH]n3285398[/ATTACH]

flash again your original dump. it should work without password.

[ingenieroedu]

flash again your original dump. it should work without password.

How well all the problems are solved, working at 100%, very grateful

[magna1984]

just flash the original bios again

Works for me as well. Thanks a lot.

[maximilianus]

Please remove BIOS Administrator Password
hp Elitebook 840 G9
Build ID : 22WWWPBZ602#SABU#DABU
sn/ 5CG3124DQ4

[maximilianus]

There are two G9 BIOS 25XXX. One on the front and one on the back of the motherboard (when the board is removed and flipped over).
I read this one from the other side.
The small CH361A works well with the new chips with the AsProgrammer.

[hoaca388]

There are two G9 BIOS 25XXX. One on the front and one on the back of the motherboard (when the board is removed and flipped over).
I read this one from the other side.
The small CH361A works well with the new chips with the AsProgrammer.

Post main bios.