Question about Dell Inspiron 4100/8100 Notebook

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Dell inspiron 1525 invalid password bios ( i type my password correct but not work thanks

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  • albawy1 Nov 12, 2009

    thanks for your effort i am the owner and the only user of laptop i do removing the battery and i fix it after 24 hours also i made short circules between the two ends but nothing happen .


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Don't mess with short circuiting,
have dell bios password from dell with older and newer bios password
just require both passwords from them,

as you noticed dell have now 2 bios password depending on the bios version, usually A9 - 2011

Posted on Mar 10, 2013

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If you are really sure that it was you who set that password, and that the current password is correct, the possibilities are, I think, three:

- the BIOS memory got somehow corrupted. You have to unlock the system by removing the battery (the access port is underneath - check the service manual on the Dell support site), and reconfigure the BIOS after it has reset.

- someone changed the password. Same solution as above. Well, unless you can get culprit to 'fess up and cough the new password.

- the keyboard is sending out the wrong keys. This may happen for several reasons, mainly:
* Software: you may have NumLock or FnLock activated (or even Caps Lock with a broken LED - try setting the various keylocks and check LEDs go on and off). If your password contains the characters U-I-O-J-K-L-M, that could be it; or *Hardware. This may happen on some platforms (I'd have bet Dell Inspiron wasn't one of them, but...), and it is "as if" one of Shift, Ctrl or Alt keys "stuck". Magic as it may seem, try pressing each of those keys three or four times before re-entering the correct password.

Posted on Nov 12, 2009

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Posted on Jan 02, 2017

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