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How to unlock a locked bios??????

Last response: in Motherboards
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June 20, 2011 6:00:30 PM

I have purchased a second hand laptop of Dell i.e.D 620 Lattitude.......and i have found that it's bios is locked.......Is there a way to unlock it using software or any other method??????
thanks

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a c 435 V Motherboard
June 20, 2011 6:02:50 PM

Some have a setting that has to be disabled. Some boards have a green jumper you can move with the system off to reset it, then return to it's run position. Try finding a bios setting first.
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June 21, 2011 4:21:02 AM

actually the bios menu is itself locked so i will not be able to change any of the bios setting......i even removed "button cell" present on the board but nothing happend......
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June 21, 2011 8:00:46 PM

There is probably a backdoor password that will get you into BIOS (so then you can remove the current bios password). Call Dell tech support and ask for it. I think I know what it is but I don't feel like it's a good idea to publish it on the forums. If Dell won't give you the password, send me a message and I'll give you one you can try.

Removing the button cell battery should work. You have to leave it out for 5 minutes or so and you the system has to be totally unplugged (no battery or AC power or anything)
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June 22, 2011 11:30:44 AM

This is my email id- "mrprady22@gmail.com".......if you know what it is then please mail me rather then on forum.....
thanks
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