Dell Latitude 5520 Bios Password unlock

[hoaca388]

Good evening. I was finally able to get the bios chip from this soldered to some wires and dump the bios. Are you able to help me unlock and clean it? I hope it dumped right.

Thank you for your help.

Service tag ?

[hakarune]

Good evening. I was finally able to get the bios chip from this soldered to some wires and dump the bios. Are you able to help me unlock and clean it? I hope it dumped right.

Thank you for your help.

[peste]

Hi everybody
could somebody help me unlocking this dell latitude 5520 bios
ST: DXF7SG3 here is my old dump
thank you

try...

[alas3376]

Hi everybody
could somebody help me unlocking this dell latitude 5520 bios
ST: DXF7SG3 here is my old dump
thank you

[DaNetguys]

Thanks for the fast reply hoaca388. So that means that I have to pull the whole MOBO, unsolder the correct chip and then flash it. then resolder it back on.... sheesh... ur asking alot from a 58 year old with shaky hands... so i would need a heat gun(specifically for doing this)???

[hoaca388]

Hi, ya i have a dell 5520 and same bios admin lock. im not sure why people are saying express service # but when i go in and try to get into the bios it gives me this code(btw I have already tried bios-pw.org and it does not work.
28S31B3-8FC8

I do notice you usually send a ".bin" file back? do I run that or?? cuz it wont let me update the bios? sorry, I am an IT guy 25+ years but this has been a bit disturbing for me as usually i can "defeat" this stuff. Thanks!! and cudo's for this website/blog/forum


DaNetguys

You should only run your own .bin file.

You need a programmer, there are many brands, but the cheapest is CH341A (cheapest but not the best).

https://www.youtube.com/results?sear...mer+how+to+use

[DaNetguys]

Hi, ya i have a dell 5520 and same bios admin lock. im not sure why people are saying express service # but when i go in and try to get into the bios it gives me this code(btw I have already tried bios-pw.org and it does not work.
28S31B3-8FC8

I do notice you usually send a ".bin" file back? do I run that or?? cuz it wont let me update the bios? sorry, I am an IT guy 25+ years but this has been a bit disturbing for me as usually i can "defeat" this stuff. Thanks!! and cudo's for this website/blog/forum


DaNetguys

[peste]

How can I do this? The PC is currently locked with a BIOS administrator password, and the Windows password is also forgotten. I want to recover or remove the BIOS password, but I don’t have any external tools or hardware. The laptop is a Dell Latitude 5520

The bios chip must be unsoldered from the board before writing or reading..
do not use the clip, you may have errors..if you do not have anything to unsolder it with,
solder wires between the programmer and the bios chip..

you need an SPI programmer...here is a video for example..https://www.youtube.com/watch?v=DWWi...nnel=ThisIsHow

[Charane Salim]

How can I do this? The PC is currently locked with a BIOS administrator password, and the Windows password is also forgotten. I want to recover or remove the BIOS password, but I don’t have any external tools or hardware. The laptop is a Dell Latitude 5520

[peste]

Hello,

Please help me remove Dell Latitude 5520 bios admin password

Service Tag: CNZFQL3-8FC8

Thank you very much!

post the original contents of the bios chip..

[Charane Salim]

Hello,

Please help me remove Dell Latitude 5520 bios admin password

Service Tag: CNZFQL3-8FC8

Thank you very much!

[dondaro]

Service TAG: J71BSG3
EX: 41784357315

[SMDFlea]

I think I was in too much of a hurry, the wifi was working and now I get code 10 in the device manager.
I connected the second identical card from another laptop but the problem is the same.

Post the service tag, as per the rules please https://www.badcaps.net/forum/troubl...before-posting

[dondaro]

try

I think I was in too much of a hurry, the wifi was working and now I get code 10 in the device manager.
I connected the second identical card from another laptop but the problem is the same.

[dondaro]

I'ts working, thanks

[LBTT1121]

Could you unlock my dump?

try

[dondaro]

Could you unlock my dump?

[st-cfx]

Try and feedback

Thank you very much! Work!

[Bios Cracker]

Hello All!

Please help me remove Dell Latitude 5520 bios password

Service Tag: 89Y4W93

Thank you very much!

Try and feedback

[st-cfx]

Attach your dump file.

Added, there was a file error.