Question about HP Pavilion dv4000 Notebook

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Bios lock what i do how to get bios password remove

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This is the web address of your parts breakdown in your laptop
http://h10032.www1.hp.com/ctg/Manual/c00530488.pdf

Please go to page 3-11 and look at number 20. the RTC Battery, Unplug power cord, remove the laptop battery, open the unit and remove the RTC Battery. Give it about 20 Min's and put back together again. This will remove the bios password

Hope this helps

Posted on Nov 11, 2008

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Try this link

Easiest Method would be to follow these steps

1: Unplug Power Cord from Power Supply in Back
2: Open Case
3: Locate Round Battery on Motherboard
4: remove Round Battery
5: wait 5 Minutes
6: replace the battery
7: Close case and plug power back in.

This should solve your problem.


If not try the solution below

Clear cmos

Typically to clear the cmos there are 3 pins with a 2 pin jumper, near the battery.
Pin 1&2 clears the cmos and pin 2&3 is default, do not do this when the system is running or it will kill your motherboard.

Posted on Nov 11, 2008

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Posted on Jan 02, 2017

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