Dell Latitude 5520 Bios Password unlock

[Thoa]

here is file unlocked

Thx b4rdock for your reply. But you did not read I can't see! ... my 5520 does not even power on and my bios had no passwort set. But when i compare the size of my bios-file with others in here, i think much data has been deleted by the pending firmware-update and powerloss.

I have an Dell Latitude 5520
Service-Tag: 5176QG3
Mainboard: Southpeak 15

I do not know where i can get more specific infos on motherboard.

Now I ve read it again and the size of the file is just like the avarage.

And once more and the files are equal! Now my question: is anybody in here who can tell me if it is corrut or not?

[Thoa]

opened the bin with UEFI TOOL and it looks pretty fine to me but the machine does not power on

Dell Latitude 5520
Service-Tag: 5176QG3
Mainboard: Southpeak 15

[hoaca388]

opened the bin with UEFI TOOL and it looks pretty fine to me but the machine does not power on
Dell Latitude 5520
Service-Tag: 5176QG3
Mainboard: Southpeak 15

Latitude 5520
Service Tag : 5176QG3

[Thoa]

Latitude 5520
Service Tag : 5176QG3

Do I have to plug off the CMOS Battery when flashing the chip or does it not matter?

[hoaca388]

Do I have to plug off the CMOS Battery when flashing the chip or does it not matter?

Normally the bios chip is powered from pin 8 of the programmer (I remember pin 8), but if there is a voltage drop, a cmos battery is needed.

[Thoa]

Latitude 5520
Service Tag : 5176QG3

Thx hoaca38

NeoProgrammer Reported succsess... Unfortunatelly it does still not power on. i am going to order a new cmos battery, cause i´ve cut the cable to bridge it for a second.

Normaly it only starts programming when a notebookbattery is recocnized AND the power cord is connected. But as i mentioned in an early post it has shut off immediatelly.

Thats why I think, something else is broken when i´ve pulled the powercord.

I am going to read the eeprom and compare to your file as soon as the battery arrives, just to be sure.

[rasta101]

Hello everyone, after purchasing a Dell latitude 5520 MDM lock, what can you get?