HP ProBook 640 G4 bios password help

[rex98]

hp probook 640 G4 bios password

SN 5CG91579Z6

this main won't work in RC unlocker only the EC 16mb.
but if you're tired removing the EC and not tired applying DMI use this patch.

First boot press F10 reset bios to factory defaults, 2nd boot reset security settings to defaults.
search here bios config utility if you don't know read sometimes.
Use BCU to fill these DMI INFO:

Serial Number: 5CG91579Z6
Product Number/SKU: 3WW24AV
CT Number: PGSUL00WBC509B
Description: HP ProBook 640 G4
build_id: 17WWC6CT601#SABF#DABF
Feature Byte: 3X476J6S6b7B7H7M7Q7W7m7saBaEapaqauawbUbhcAdUdpdqfAfXhk.8n
MAC Address: 9C-7B-EF-6B-83-9E

[benzaoui]

this main won't work in RC unlocker only the EC 16mb.
but if you're tired removing the EC and not tired applying DMI use this patch.

First boot press F10 reset bios to factory defaults, 2nd boot reset security settings to defaults.
search here bios config utility if you don't know read sometimes.
Use BCU to fill these DMI INFO:

Serial Number: 5CG91579Z6
Product Number/SKU: 3WW24AV
CT Number: PGSUL00WBC509B
Description: HP ProBook 640 G4
build_id: 17WWC6CT601#SABF#DABF
Feature Byte: 3X476J6S6b7B7H7M7Q7W7m7saBaEapaqauawbUbhcAdUdpdqfAfXhk.8n
MAC Address: 9C-7B-EF-6B-83-9E

W25Q128BV@WSON8_20240318_115303

[rex98]

W25Q128BV@WSON8_20240318_115303

here

[Echoo]

Hello!

I opened it with RC Unlocker, but the password remained! I ran it twice! What could be wrong?
SN: 5CG9223YTD
SKU: 4NJ95EC

[zyu123@gmail.com]

Hi , can anyone help me to unlock my hp probook 640 G4 bios password pls?

Thank you in advance

[shiyab]

Hi , can anyone help me to unlock my hp probook 640 G4 bios password pls?

Thank you in advance

post both file and snid

[zyu123@gmail.com]

I have only one file.
ProdID: 2TF89AV
snid: 2TK91906GK

[rex98]

I have only one file.
ProdID: 2TF89AV
snid: 2TK91906GK

since you don't know where the ec file is located use this:
first boot press f10 apply factory defaults and restart. use BCU


Serial Number: 2TK91906GK
Product #/SKU: 2TF89AV
CT Number: PGWKF00WBC71UT
Description: HP ProBook 640 G4
BuildID: 17WWC6CT601#SABA#DABA
Feature Byte: 3X476J6S6b7B7H7M7Q7W7maBaEapaqauawbhcAdQdUdpdqfAhk.gF
MAC Address : 9C:7B:EF:97:68:AA

[shiyab]

Hi , can anyone help me to unlock my hp probook 640 G4 bios password pls?

Thank you in advance

post 16 mb

[benzinformatique]

the embedded controller mud data does not match the bios mud data error
HP ProBook 640 G4
SN: 5CG92721Q1
prodID 2Gl98AV
UUID F5A5293-C563-88F7-576B-9F2364F52A4C
FEATURE BYTE 3X476J6S6b7B7H7M7Q7W7msaBaE
apaqauawbUbhcAdpdqfAhk.F4
build id 17WWC6CT601#SABF#DABF
Product Family 103C_5336AN HP ProBook
System Board ID 83D2
System Board CT Number PGWKH00WBCH0U5
Primary Battery Serial Number 02183 2019/04/22

the 32M bin the original dump is missing i use one from here
the 16M bin is dumped from my chip

[benzinformatique]

the embedded controller mud data does not match the bios mud data error
HP ProBook 640 G4
SN: 5CG92721Q1
prodID 2Gl98AV
UUID F5A5293-C563-88F7-576B-9F2364F52A4C
FEATURE BYTE 3X476J6S6b7B7H7M7Q7W7msaBaE
apaqauawbUbhcAdpdqfAhk.F4
build id 17WWC6CT601#SABF#DABF
Product Family 103C_5336AN HP ProBook
System Board ID 83D2
System Board CT Number PGWKH00WBCH0U5
Primary Battery Serial Number 02183 2019/04/22

the 32M bin the original dump is missing i use one from here
the 16M bin is dumped from my chip

Bump . rex98 can you help with this

[LBTT1121]

the embedded controller mud data does not match the bios mud data error
HP ProBook 640 G4
SN: 5CG92721Q1
prodID 2Gl98AV
UUID F5A5293-C563-88F7-576B-9F2364F52A4C
FEATURE BYTE 3X476J6S6b7B7H7M7Q7W7msaBaE
apaqauawbUbhcAdpdqfAhk.F4
build id 17WWC6CT601#SABF#DABF
Product Family 103C_5336AN HP ProBook
System Board ID 83D2
System Board CT Number PGWKH00WBCH0U5
Primary Battery Serial Number 02183 2019/04/22

the 32M bin the original dump is missing i use one from here
the 16M bin is dumped from my chip

hi, try and feedback, only 16Mb

[benzinformatique]

hi, try and feedback, only 16Mb

I flash it but it not turn on caps led and wifi led keyboard blinking

[kestas666]

Hi there to all professionals! Looking to get bios password removed on HP ProBook 640 G4. Attaching 32MB bios dump file. Thanks in advance

[peste]

Hi there to all professionals! Looking to get bios password removed on HP ProBook 640 G4. Attaching 32MB bios dump file. Thanks in advance

post S/N, motherboard model, product number,etc.

post the 16MB bios..

[kestas666]

is it possible just to clear password with a Hex editor and reprogram eeprom? if so from what to what address. Thought password is on 32MB chip no? Thanks for reply

[SMDFlea]

As above post...

post S/N, motherboard model, product number,etc.

post the 16MB bios..

[kestas666]

is it possible just to clear password with a Hex editor and reprogram eeprom? if so from what to what address. Thought password is on 32MB chip no? Thanks for reply

got sorted, don`t need to touch 16MB bios, password was in 32MB chip addresses from 01B02DA8 to 01B02DF0. Bios password now gone!

[benzinformatique]

HP ProBook 640 G4 caps and power led blinking no power after try password remove
SN: 5CG92721Q1
prodID 2Gl98AV
UUID F5A5293-C563-88F7-576B-9F2364F52A4C
FEATURE BYTE 3X476J6S6b7B7H7M7Q7W7msaBaE
apaqauawbUbhcAdpdqfAhk.F4
build id 17WWC6CT601#SABF#DABF
Product Family 103C_5336AN HP ProBook
System Board ID 83D2
System Board CT Number PGWKH00WBCH0U5
Primary Battery Serial Number 02183 2019/04/22

the 32M chip corrupted i use another

the 32M bin the original dump is missing i use one from here
the 16M bin is dumped from my chip

[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..