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Unlock my dell lat d420 bios password with service tag ending with 595B. is ther any master code for that?

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  • smartisiwu20 Nov 25, 2008

    i just need a master code for unlocking dell latitude d420

  • smartisiwu20 Nov 25, 2008

    how to flash dell latitude d420 bios password

  • ahilling25 Jan 01, 2009

    My Dell Latitude D420 is Bios locked.

    I need it unlocked.

  • Andrewcmd Apr 28, 2009

    i have an DELL latitude D800 and i can't find master code because service tag is -595B :(
    I need to unlock this laptop,please help me
    service tag: #883TS0J-595B
    thank you ....

  • pulkownik Sep 28, 2009

    Where is this ec_flash pin? i can't fint it

  • Shaun Plencner
    Shaun Plencner May 11, 2010

    no where did u buy ur computer



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Find ec_flash pin on dell d420 motherbord
short the pin and it ok no grey screen

Posted on Aug 14, 2009

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Ok these guys seem to claim that they can unlock it

But i have ru into this sort of trouble with DELL bios password in the past and the password is stored in a security chip on the motherboard and the only way i have been able to clear it was to order a new chip and carefully cutt the old chip out and solder a new one in its place.. (not a fun project that i would ever want to repeat. In fact i was amazed when the computer turned on and worked when i was

But t hat was also on a slightly older inspiron laptop so maybe with newer laptop like the one you have it is possible for the place listed above to unlock it for you.

I am currious as to the solution you find so please update this post here with the working solution that you find

Hope this info is helpfull in some way

Posted on Nov 25, 2008

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unlock my dell lat d420 bios password with service - img6673129thmb.jpg DELL VOSTRO 1000
go to to unlock any dell Laptop

Posted on Jul 20, 2010

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Can you explain little more about ec_flash pin ??
i found it ; but need some clarification please !

Posted on Oct 22, 2009

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This is my code #2DMNPF1-595B

DELL service tag: 2DMNPF1-595B has a Dell bios master password: j31qknmi OR 8vigkcij
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How can i unlock dell latitude d420 bios password i bought the laptop at auction, now i'm screwed.

For that try password as "dell" or "DELL"
If it not works then you have to reset all settings of bios to factory defaults.
For that you need to open back side cover of laptop.
Open all screw in back side then remove cover then you find motherbord chipset .
Pull cmos cell from motherbord 15 minutes so all settings goes to factory defaults.
Let me know if you need more assistanse.

Sep 16, 2009 | Dell Latitude D620 Notebook

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