hp elitebook 840 g4 need password unlock

[peste]

Hi, could someone please help me with HP EliteBook 840 G4, sn - 5CG7105G3M

read..https://www.badcaps.net/forum/troubl...before-posting
post the 16 MB bios

[mp2172]

read..https://www.badcaps.net/forum/troubl...before-posting
post the 16 MB bios

How do I post the 16MB bios?

[SMDFlea]

How do I post the 16MB bios?

You will need an SPI bios programmer to make a backup of the chip.The chip is in a WSON8 package,so you will need to desolder it first ,then put it into a WSON8 adapter or alternatively use a WSON8 pogo adapter (unreliable YMMV) .Then read the chip a few times,check to make sure you`ve made a good backup, then post it here inside a zip or rar attachment and also post the laptop serial number.

1. How to dump and flash
1.1. BIOS
https://www.badcaps.net/forum/troubl...21#post1622421

[mp2172]

You will need an SPI bios programmer to make a backup of the chip.The chip is in a WSON8 package,so you will need to desolder it first ,then put it into a WSON8 adapter or alternatively use a WSON8 pogo adapter (unreliable YMMV) .Then read the chip a few times,check to make sure you`ve made a good backup, then post it here inside a zip or rar attachment.

1. How to dump and flash
1.1. BIOS
https://www.badcaps.net/forum/troubl...21#post1622421

Thank you. So basically, RCUnlocker or any other tool can't bypass/reset the Administrator BIOS password without removing the chip?

[SMDFlea]

"or alternatively use a WSON8 pogo adapter (unreliable YMMV)" .The most reliable way is to desolder the chip using a hot air station.

[peste]

How do I post the 16MB bios?

down right.....QUOTE, bottom left..Upload Attachments..etc...

[Echoo]

Hello!

I tried unlocking the 840 G4 bios because it was password protected. He no picture since then! I uploaded both the original dump and the unlocked file! Please help!

[SMDFlea]

Read the rules before posting please! You must post the laptop serial number !
Additionally unlocking method for this laptop model is available at BIOS guides, methods, resources and tools thread!


RULES UPDATE for BIOS requests/offers *AVOID BANNING, READ BEFORE POSTING*
https://www.badcaps.net/forum/troubl...before-posting

[bilal767]

Hi,
Can anyone please unlock this bios. I have tried with RCunlocker 4/5 times but every time I get error " Missing unlockable contents"

SN/ 5CG91119F7
Model HP EliteBook 840r G4

[rex98]

Hi,
Can anyone please unlock this bios. I have tried with RCunlocker 4/5 times but every time I get error " Missing unlockable contents"

SN/ 5CG91119F7
Model HP EliteBook 840r G4

your bios is corrupt. read again

[bilal767]

your bios is corrupt. read again

Thanks, after few tries I was able to read whole bios and unlocked using RCunlocker

[bilal767]

Hi,
Can anyone please unlock the following bios. I have tried with RCunlocker and its says unlocked but after writing it back, the password comes back.
S/N: 5CGB4411N5
HP EliteBook 840r G4

[peste]

Hi,
Can anyone please unlock the following bios. I have tried with RCunlocker and its says unlocked but after writing it back, the password comes back.
S/N: 5CGB4411N5
HP EliteBook 840r G4

see on the motherboard if you still have a bios chip.. on both sides..

[bilal767]

see on the motherboard if you still have a bios chip.. on both sides..

Yes there is another chip similar to this one? Do I need to unlock the other chip using RCunlocker? Thanks for your help

[peste]

Yes there is another chip similar to this one? Do I need to unlock the other chip using RCunlocker? Thanks for your help

better post the other one here... and we'll see..

[uusr]

Hi,
Can anyone please unlock the following bios. I have tried with RCunlocker and its says unlocked but after writing it back, the password comes back.
S/N: 5CG8113HM6
HP EliteBook 840 G4

[peste]

Hi,
Can anyone please unlock the following bios. I have tried with RCunlocker and its says unlocked but after writing it back, the password comes back.
S/N: 5CG8113HM6
HP EliteBook 840 G4

post both bios here..

[uusr]

post both bios here..

Reading done with Neoprogramer 2.2.0.10

[peste]

Reading done with Neoprogramer 2.2.0.10

try..After entering bios go to security tab and reset security settings to default...

[uusr]

try..After entering bios go to security tab and reset security settings to default...

This is brilliant, everything works, how much do I owe you?

[SMDFlea]

This is brilliant, everything works, how much do I owe you?

Its free, you don`t owe anything

[kafarda]

My Bios is Password protected, Help me clear the password please.
HP EliteBook 840 G4