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Disconnect all power sources, including the battery. Open the laptop and remove the CMOS battery (the little round silver thing). Hold the power button to drain any residual charge for 10 seconds. Boot the computer without the CMOS battery inserted. it should say password disabled. Reassemble the computer and you're done!
In order you forgot the bios password, try opening the cpu and remove the bios and replace it again. This will reset the time,password to default values. That is no password, all password and time setting will be erased.
If you cannot find the reset pins try to find the CMOS 3V battery, it is usually located under the keyboard, and disconnect it. remove the computer battery and then start the computer. When you boot it should ask you for the time and date. At this point shut down and plug the CMOS battery back in and reinstall the computer battery. This time when it ask for the time and date go ahead and enter it and the rest of the bios should be set to default.
At this time you need to cleat the BIOS password first so that you can get into BIOS. To cleat the BIOS password you need to open your laptop you just remove the battery first. Remove the screw and open the back cover. Locate the CMOS battery, all password are stored in CMOS memory.
Remove the CMOS battery to clear the stored BIOS password, Or you can remove also the CMOS jamper near the CMOS battery and turn on the unit with in 10 second and turn off. Reinsert the jamper. Now the BIOS password are already clear you can get now in BIOS to change some settings. Good luck
Hi , You need to reset your CMOS.Open your CPU cover.and look for CMOS battery.Its a button cell.You have to remove that battery and on the machine and go into bios.It will remove your cmos password. But if this thing not worke then find out CMOS reset jumper on your motherboard.It will be located somewhere near your CMOS battery.Just remove that jumper and connect to reset settings.and start your machine.It will remove your password.
Some BIOS manufacturers implement a backdoor password. The backdoor password is a BIOS password that works, no matter what the user sets the BIOS password to. These passwords are typically used for testing and maintenance. Manufacturers typically change the backdoor BIOS passwords from time to time.
BIOS Password Compaq
Unplug your power source open the case and remove the battery, wait 60s put the battery back and turn on the computer. I think than you will not be waken up and you will be able to access BIOS as well.
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