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Pls how do i unlock my dell latitude d420 bios password

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  • brekstad Dec 28, 2008

    I have an IBM ThinkPad Notebook of which I forgot the BIOS password as well. Can you help me out?

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Dell stores its password in a special security chip which is activated only during boot time. So you cannot use any software to unlock it. Also there is no jumper by which you can clear the password. There are few password recovery services which charges about $100. I am trying to find a solution. If you can wait for a couple of days then I think I will be able to tell you something usefull.

Posted on Nov 25, 2008

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U HAVE TO OPEN THE SYSTEM AND RESET BIOS USING BIOS RESET SWITCH ON MOTHERBOARD.

Posted on Nov 25, 2008

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1 Answer

Need to locate the jumpers on the motherboard of dell latitude d420 notebook to reset os password


I'm not sure the d420 has a jumper for BIOS reset on the motherboard. I think you will need to remove the small CMOS battery under the keyboard (for around 15 minutes) to reset the BIOS password and settings.

Jan 05, 2014 | Dell Latitude D420 (DELLD420) PC Notebook

1 Answer

HOW TO CLEAR BIOS PASSWORD FOR LATITUDE D420


Remove or disconnect the RTC/CMOS (coin-cell) battery from the motherboard. This will reset the BIOS to defaults and the password will be gone. Here is the Coin-cell information

Let me know if any further clarification/ assistance is required.

Good Luck!
CreativeTECH

Dec 14, 2010 | Dell Latitude D620 Notebook

1 Answer

I just bought a used dell latitude d420 and its locked and the person forgot the password how do i unlock it


I am afraid that such kind off issues could only be solved by motherboard replacement, unless you can contact your laptop's manufacturer support with a proof of ownership of this notebook.

There is also this service which can help you crack the BIOS password:
http://www.pwcrack.com/security_chips.shtml

Dec 03, 2010 | Dell Latitude D420 (D420SAPP) PC Notebook

4 Answers

Dell D420 Bios Password


I got my Dell Bios & HDD Master Pasword within a few minutes from http://www.bios-password.kickme.to/

Jul 20, 2010 | Dell Latitude D420 Notebook

2 Answers

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.
Thanks.

Sep 16, 2009 | Dell Latitude D620 Notebook

1 Answer

Bios password forget


Ok, let's take a look at this;

Under the keyboard you will find the cmos battery; you will need to remove this to set the factory defaults.

Do this at your own risk, it can be tricky sometimes

Before you start

http://www.support.dell.com/support/edocs/systems/latd430/en/SM/begin.htm#wp1435071


Remove keyboard

http://www.support.dell.com/support/edocs/systems/latd430/en/SM/keyboard.htm#wp1121087

Remove cmos battery

http://www.support.dell.com/support/edocs/systems/latd430/en/SM/coinbatt.htm#wp1123951


Leave it out for 15 mins.

It will work.

Please donto forget to rate this suggestion.

Mar 19, 2009 | Dell Latitude D420 (D420SAPP) PC Notebook

4 Answers

How can i unlock dell latitude d420 bios password


Clearing the CMOS will reset the password...
Take the button cell battery out for a few minutes, put it back in, and all settings, including the password, should go back to defaults.
Unfortunately it looks like your BIOS battery is under the keyboard...
Dell has got what looks like decent directions here, for getting at it:
http://support.dell.com/support/edocs/systems/latd420/en/SM_EN/coinbatt.htm#wp1123951

Nov 25, 2008 | Dell Latitude D620 Notebook

2 Answers

Dell D420 laptop


Did you contact DELL. As long as you have the police report, they should be allowed to help you. That is a security issue. We can not tell you that because you could be someone with a stolen laptop. We have no way of knowing this. You would not want us to explain to someone how to break into your laptop would you?

May 23, 2008 | Acer Aspire 3680 Laptop

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