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How to remove bios password ? model dell 6400

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Try Dell as a password.
Removing the BIOS battery for 1/2 hour may remove the BIOS password and reset the BIOS back to the default settings. You will then need to configure the BIOS to set the Date & Time.
If this doesn't work then the BIOS password is stored on an EEPROM chip and is very difficult to remove or bypass.

Posted on Jun 22, 2009

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If you really cant find it you could try taking the cmos battery out for 40sec and then reseating it.
that would clear any bios passwords

Posted on Jun 22, 2009

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rwandrew
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SOURCE: reset bios password

If you are not afraid to open the box, the simple fix would be to remove the cpu battery(looks like a quarter) for about 30 seconds and replace, then boot up. At that point it will ask for information such as date and time, but then you can access the bios

Posted on Oct 03, 2008

  • 31 Answers

SOURCE: DELL BIOS PASSWORD

After a lot of research and many attempts to unlock my Dell Laptop with biospassword, while talking to Dell Support, I finally found this website www.biosunlock.com

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Posted on Nov 17, 2011

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SOURCE: dell 6400 bios password lose

Dell BIOS password reset with article help: http://www.windowspasswordsrecovery.com/articles/computer/how-to-reset-bios-password.html

Posted on Nov 29, 2013

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I would like to get a password to have access at a BIOS Dell Inspiron 6400.


Dell Laptop with bios or hard drive password set ? Unlock your dell laptop using the link below if it display a message that says "this computer system is protected by a password authentication system, you cannot access the data on this computer without the primary or administrator password, when you turn on the computer. This message is what you get if the BIOS is protected by a password. or you get system disabled

Go to: http://dell-inspiron-6400-bios-password.biospwd.com to get your dell bios password authentication and get full access to your dell computer, they can unlock almost all dell laptop such as dell inspiron, xps, latitude, precision, studio, vostro

Jul 14, 2011 | Dell Inspiron 6400 Notebook

1 Answer

Bios password for dell inspirion 6400


remove the laptop (large battery) then: remove the bios battery (small) from the motherboard wait ten minutes pluf in the laptop reboot then shutdown and reinsert the laptop battery. your code will be erased

May 21, 2009 | Dell Inspiron 6400 Notebook

1 Answer

DELL


REMOVE THE CMOS BATTERY FROM THE MOTHERBOARD AND INSERT IT AGAIN TO RESET BIOS PASSWORD..

Feb 02, 2009 | Dell Inspiron 6400 Notebook

5 Answers

Reset bios password


If you are not afraid to open the box, the simple fix would be to remove the cpu battery(looks like a quarter) for about 30 seconds and replace, then boot up. At that point it will ask for information such as date and time, but then you can access the bios

Oct 03, 2008 | Dell Inspiron 6400 Notebook

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