Hp elitebook 840 g9

[rex98]

Can someone unlock bios for HP elitebook 840 g9?
SN# 5CG23634TL

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: 5CG23634TL
Product #/SKU: 6Z4A9UP#ABA
CT Number: PQSPN00WBH31K5
Description: HP EliteBook 840 14 inch G9
BuildID: 22WWWPAT602#SABA#DABA
Feature Byte: 476J6S6b7B7H7M7R7W7m7saBaEapaqauawbUbhcAdpdqfPgSguhKjhk8mEmwn7nVngpDpVpqqjqz.Eg
MAC Address : 38:CA:84:4E:F9:E1

[maobuff]

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: 5CG23634TL
Product #/SKU: 6Z4A9UP#ABA
CT Number: PQSPN00WBH31K5
Description: HP EliteBook 840 14 inch G9
BuildID: 22WWWPAT602#SABA#DABA
Feature Byte: 476J6S6b7B7H7M7R7W7m7saBaEapaqauawbUbhcAdpdqfPgSguhKjhk8mEmwn7nVngpDpVpqqjqz.Eg
MAC Address : 38:CA:84:4E:F9:E1

Hi. First boot f10 and I'm able to reset to factory defaults. on second boot I'm unable to enter bios. It always freeze on entering setup and restart after few seconds. Bios is still locked.

[rex98]

Hi. First boot f10 and I'm able to reset to factory defaults. on second boot I'm unable to enter bios. It always freeze on entering setup and restart after few seconds. Bios is still locked.

try again

[maobuff]

try again

Same, after restoring factory defaults next boot always fails.

[danito]

Same, after restoring factory defaults next boot always fails.

Try
1. Flash Patched File
2. in First BOOT got to SETUP in MAIN Tab Restore Factory Defaults
3. Save and Exit
4. Flash back Original Bios BIN File

[maobuff]

Try
1. Flash Patched File
2. in First BOOT got to SETUP in MAIN Tab Restore Factory Defaults
3. Save and Exit
4. Flash back Original Bios BIN File

Can I just solder wires to bios chip to save time? ofc I will remove bios battery and main battery.

[danito]

Can I just solder wires to bios chip to save time? ofc I will remove bios battery and main battery.

I don't know, yes, remove the batteries.

[maobuff]

Try
1. Flash Patched File
2. in First BOOT got to SETUP in MAIN Tab Restore Factory Defaults
3. Save and Exit
4. Flash back Original Bios BIN File

What I did:
1)desoldered bios chip
2)flashed bios with verification
3)put laptop together(connecting everything)
4) after connecting bios battery and main battery laptop turned on with f5 and f8 light up and fanspin, then it powered off, then again f5 and f8 light.
5) on second reboot backlight turned on and Im able to enter bios, in main tab I selected reset to manufactures default and exit
6) laptop turned on with f5 and f8 lights, after 1-2min turned off
7) removed motherboard and desoldered bios chip
8) flashed my original dump and soldered it back
9) assembled laptop and again after pluging main battery it turned on with f5 and f8 lights
10) after 2 reboots again screen backlight turned on and i was able to enter bios(f10) and its still locked

I have assumption that f5 and f8 it is some sort of memory training because its an ddr5.

[Mrnixdorf]

Please remove BIOS Administrator Password
hp Elitebook 840 G9
6050A3417601 MB A01
SN 5CG30614P3

[rex98]

Please remove BIOS Administrator Password
hp Elitebook 840 G9
6050A3417601 MB A01
SN 5CG30614P3

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: 5CG30614P3
Product #/SKU: 6B4Y0AV
CT Number: PQSPP00WBHO2JN
Description: HP EliteBook 840 14 inch G9
BuildID: 22WWWPAD301#SABD#DABD
Feature Byte: 3Y6E6J6S6a7H7M7R7W7d7j7m7saEawbUbhcAfAfPguhKhkjhk8m6n7nVngpFpTqjqz.2e

[Mrnixdorf]

[QUOTE=rex98;n3317671]

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: 5CG30614P3
Product #/SKU: 6B4Y0AV
CT Number: PQSPP00WBHO2JN
Description: HP EliteBook 840 14 inch G9
BuildID: 22WWWPAD301#SABD#DABD
Feature Byte: 3Y6E6J6S6a7H7M7R7W7d7j7m7saEawbUbhcAfAfPguhKhkjhk8m6n7nVngpFpTqjqz.2e


lot of thanks worked 100%

[iampachi]

Por favor elimine la contraseña de administrador del BIOS

hp Elitebook 840 G9

6050A3417601 MB A01

SN 5CG3027M3C

Archivos adjuntos

[rex98]

Por favor elimine la contraseña de administrador del BIOS

hp Elitebook 840 G9

6050A3417601 MB A01

SN 5CG3027M3C

Archivos adjuntos

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: 5CG3027M3C
Product #/SKU: 6W029UP#ABA
CT Number: PQSPQ00WBHLER9
Description: HP EliteBook 840 14 inch G9
BuildID: 22WWWPBZ601#SABA#DABA
Feature Byte: 476J6S6b7B7H7M7Q7W7m7saBaEapaqauawbUbhcAfPgSguhKjhk8mEn7nVngpFpVpnpqprqjqz.dy
MAC Address : 7C:4D:8F:37:61:FD

[iampachi]

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: 5CG3027M3C
Product #/SKU: 6W029UP#ABA
CT Number: PQSPQ00WBHLER9
Description: HP EliteBook 840 14 inch G9
BuildID: 22WWWPBZ601#SABA#DABA
Feature Byte: 476J6S6b7B7H7M7Q7W7m7saBaEapaqauawbUbhcAfPgSguhKjhk8mEn7nVngpFpVpnpqprqjqz.dy
MAC Address : 7C:4D:8F:37:61:FD

worked 100% thanks

[serginio]

Hello! Can you help me to unlock bios?
Model: 840 G9
SN: 5CG3133N35

[serginio]

Hello! Can you help me to unlock bios?
Model: 840 G9
SN: 5CG3133N35

Can someone help me?

[farouk_1994]

Can someone help me?

Serial Number: 5CG3133N35
Product #/SKU: 6W029UP#ABA
CT Number: PQSPQ00WBHLER9
Description: HP EliteBook 840 14 inch G9
BuildID: 22WWWPBZ601#SABA#DABA
Feature Byte: 476J6S6b7B7H7M7Q7W7m7saBaEapaqauawbUbhcAfPgSguhKjhk8mEn7nVngpFpVpnpqprqjqz.dy
try this than replay

[serginio]

Serial Number: 5CG3133N35
Product #/SKU: 6W029UP#ABA
CT Number: PQSPQ00WBHLER9
Description: HP EliteBook 840 14 inch G9
BuildID: 22WWWPBZ601#SABA#DABA
Feature Byte: 476J6S6b7B7H7M7Q7W7m7saBaEapaqauawbUbhcAfPgSguhKjhk8mEn7nVngpFpVpnpqprqjqz.dy
try this than replay

Your bios the same as a locked

[rex98]

Your bios the same as a locked

try

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.

[Mrnixdorf]

Hello! Can you help me to unlock bios?
Model: ELITEBOOK 860 G9
SN 5CG3063R73

Off topic.Don`t hijack threads when the model number is different. You have already asked for the bios once https://www.badcaps.net/forum/troubl...g9#post3331962