Hp elitebook 840 g9

[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.

[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

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

[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 again

Same, after restoring factory defaults next boot always fails.

[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]

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]

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

[SMDFlea]

Post the serial number please --> https://www.badcaps.net/forum/troubl...before-posting

[maobuff]

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

[munir100]

first boot press f10 apply factory defaults and restart, 2nd boot reset security settings to defaults and exit.
after following my instruction to get rid of Manufacturing mode. use BCU.
here's your DMI:
Serial Number: 5CG2362VDT
Product #/SKU: 6Z4A9UP#ABA
CT Number: PQSPN00WBH319X
Description: HP EliteBook 840 14 inch G9
BuildID: 22WWWPAT602#SABA#DABA
Feature Byte: 476J6S6b7B7H7M7R7W7m7saBaEapaqauawbUbhcAdpdqfPgSguhKjhk8mEmwn7nVngpDpVpqqjqz.Eg
MAC Address : 38:CA:84:4E:59:F7

Thank s password is removed

[rex98]

i have a HP elitebook 840 g9 bios password pls can any one removd password here is bios file s/n 5CG2362VDT

first boot press f10 apply factory defaults and restart, 2nd boot reset security settings to defaults and exit.
after following my instruction to get rid of Manufacturing mode. use BCU.
here's your DMI:
Serial Number: 5CG2362VDT
Product #/SKU: 6Z4A9UP#ABA
CT Number: PQSPN00WBH319X
Description: HP EliteBook 840 14 inch G9
BuildID: 22WWWPAT602#SABA#DABA
Feature Byte: 476J6S6b7B7H7M7R7W7m7saBaEapaqauawbUbhcAdpdqfPgSguhKjhk8mEmwn7nVngpDpVpqqjqz.Eg
MAC Address : 38:CA:84:4E:59:F7

[dihcar84]

HP EliteBook 840 14 inch G9 Notebook PC
CT Number_6MBNF0CWYH78KQ
Serial_5CG2461L2C
Sku_5Z695EA#ABH
Fearture byte_476J6S6b7B7H7M7Q7W7m7saBaEapaqauawbUbhcAdpdqfAfPguhKhkjhk8mEmGn7nVngpTpppqqjqz.dD
Build Id_22WWWPAT602#SABH#DABH

after writing all this bios locked
!

[munir100]

i have a HP elitebook 840 g9 bios password pls can any one removd password here is bios file s/n 5CG2362VDT

[dihcar84]

HP EliteBook 840 14 inch G9 Notebook PC
CT Number_6MBNF0CWYH78KQ
Serial_5CG2461L2C
Sku_5Z695EA#ABH
Fearture byte_476J6S6b7B7H7M7Q7W7m7saBaEapaqauawbUbhcAdpdqfAfPguhKhkjhk8mEmGn7nVngpTpppqqjqz.dD
Build Id_22WWWPAT602#SABH#DABH

thank you

[hoaca388]

unlock please

840 G9 SN:5CG2461L2C

HP EliteBook 840 14 inch G9 Notebook PC
CT Number_6MBNF0CWYH78KQ
Serial_5CG2461L2C
Sku_5Z695EA#ABH
Fearture byte_476J6S6b7B7H7M7Q7W7m7saBaEapaqauawbUbhcAdpdqfAfPguhKhkjhk8mEmGn7nVngpTpppqqjqz.dD
Build Id_22WWWPAT602#SABH#DABH

[dihcar84]

unlock please

840 G9 SN:5CG2461L2C

[souaqi01]

Give this a try

thanks

[souaqi01]

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: 5CG3252VHK
Product #/SKU: 88S79EC#ABE
CT Number: PPQBC00WBI726K
Description: HP EliteBook 840 14 inch G9
BuildID: 22WWWPBZ602#SABE#DABE
Feature Byte: 476J6S6b7B7H7M7Q7W7m7saEapaqauawbUbhcAfPgSguhKjhk8mEn7nVngpDpFpVpnpqprqjqz.HB
MAC Address : BC:0F:F3:47:2B:C8

thank you very much it working

[rex98]

hi any one help plz for unlock the bios hp elitebook 840 g9
SN 5CG3252VHK

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: 5CG3252VHK
Product #/SKU: 88S79EC#ABE
CT Number: PPQBC00WBI726K
Description: HP EliteBook 840 14 inch G9
BuildID: 22WWWPBZ602#SABE#DABE
Feature Byte: 476J6S6b7B7H7M7Q7W7m7saEapaqauawbUbhcAfPgSguhKjhk8mEn7nVngpDpFpVpnpqprqjqz.HB
MAC Address : BC:0F:F3:47:2B:C8