Dell Pro 13 Plus PB13250 Bios Unlock

[Akhlz001]

Hi,

Could someone help trying to unlock this BIOS, seems that Dell have changed the layout of new Dell Pro 8FC8 bioses from checking HXD - 4000 bits do not need changing, only 2000. However after FF the section starting from '01000' upto 2000 bits and then soldering the chip back it seems that the microchip on the motherboard is recovering the bios back to original settings after first boot. Has anyone found a way to crack this extra layer of security Dell have implemented? Seems both HP and Dell have upped bios security to match Lenovo by implementing extra measures on a separate IO chip which hasn't been cracked.... just yet anyway.

I have attached both the original file and the modified variant that I made which still didn't work. SMDFlea have you got any ideas? If I were to post a bios of another pro 13 plus with the password on and one without the password enabled on the same laptop would that help?

Dell Pro 13 Plus PB13250
S/N: CTPDNB4

[hoaca388]

Hi,

Could someone help trying to unlock this BIOS, seems that Dell have changed the layout of new Dell Pro 8FC8 bioses from checking HXD - 4000 bits do not need changing, only 2000. However after FF the section starting from '01000' upto 2000 bits and then soldering the chip back it seems that the microchip on the motherboard is recovering the bios back to original settings after first boot. Has anyone found a way to crack this extra layer of security Dell have implemented? Seems both HP and Dell have upped bios security to match Lenovo by implementing extra measures on a separate IO chip which hasn't been cracked.... just yet anyway.

I have attached both the original file and the modified variant that I made which still didn't work. SMDFlea have you got any ideas? If I were to post a bios of another pro 13 plus with the password on and one without the password enabled on the same laptop would that help?

Dell Pro 13 Plus PB13250
S/N: CTPDNB4

Try

[Akhlz001]

Try

Unfortunately it is still asking for the password in bios. The asset tag and ownership date have cleared though, I wonder if the password is stored on the MEC chip next to the bios chip.

[rasta24]

Hi,

Could someone help trying to unlock this BIOS, seems that Dell have changed the layout of new Dell Pro 8FC8 bioses from checking HXD - 4000 bits do not need changing, only 2000. However after FF the section starting from '01000' upto 2000 bits and then soldering the chip back it seems that the microchip on the motherboard is recovering the bios back to original settings after first boot. Has anyone found a way to crack this extra layer of security Dell have implemented? Seems both HP and Dell have upped bios security to match Lenovo by implementing extra measures on a separate IO chip which hasn't been cracked.... just yet anyway.

I have attached both the original file and the modified variant that I made which still didn't work. SMDFlea have you got any ideas? If I were to post a bios of another pro 13 plus with the password on and one without the password enabled on the same laptop would that help?

Dell Pro 13 Plus PB13250
S/N: CTPDNB4

Which programmer did you use to read it?

[joby91]

Hello,
Have you been able to unlock the bios?
I have seen there is ebay seller that is selling unlocked bios chips.
Does this means that we can clear the password with only Programming the bios chip?

[Tony88]

hi can you help me to unlock bios dell pro 13 plus PB13250
ST: 7Z09NC4

[peste]

hi can you help me to unlock bios dell pro 13 plus PB13250
ST: 7Z09NC4

this is not the bios.. look for another bios chip...check both sides of the board..

[Tony88]

Thanks for your reply yes i just seen its a second chip on the otherside but unfortunately i have no programmer to read it.it tells me chip unknown with my current programmer.
can you tell me on this model the bios password is saved on mec chip or bios ic to this model?
im looking on eBay seller already sell the same chip with no admin password
Someone can give me an advice?

[Aditya11ttt]

Thanks for your reply yes i just seen its a second chip on the otherside but unfortunately i have no programmer to read it.it tells me chip unknown with my current programmer.
can you tell me on this model the bios password is saved on mec chip or bios ic to this model?
im looking on eBay seller already sell the same chip with no admin password
Someone can give me an advice?

try unlock via master code rather

[kherroubi2001]

Could someone help trying to unlock this BIOS
Dell Pro 13 Plus PB13250
service tag: BKTFFD4

[srsyed1]

Can anyone please help me unlock this bios file
Dell Pro 13 Plus PB13250
Service Tag: 2SGNZB4

[RafiManch]

Hello Everyone,
I hope someone can help me to resolve the problem.
Has anyone got experience with new generation of Dell laptops please ?





I am working on Dell Pro 13 Plus PB13250 where client forgot the passwords.
Up to now in all Dell laptops I was able to locate the area in BIOS chip.
It looks like design has been changed now.
Has password been moved to MEC chip please ?
I hope someone with more experience can help.
Thanking you in advance.
Regards,
Rafal

[peste]

post the original contents of the bios chip..

post S/T, full name and model, motherboard model,etc.
Don't post pictures unless asked...write with the keyboard..

[RafiManch]

Thank you for your reply.
Bios File Is Attached. I believe password is stored in MEC IC (not in BIOS IC).
Dell Pro 13 Plus PB13250
Service Tag: 2QM5GB4

[LBTT1121]

backup EC....

[RafiManch]

Hi,
This is model with single BIOS chip. There is no second BIOS chip for EC.
EC can't be simply read and saved like from other SIO chips using keyboard socket.
Keyboard connection will not allow me to read and save file from this EC (MEC5407-LJ).