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How to use the jumper to reset the BIOS password on your Dell laptop !
now to unlock your dell laptop maually
Before you begin
Perform the safety steps in the order below.
Warning: these steps are for your personal safety and the protection of the equipment.
Turn off your computer, and then unplug the power cable.
Wait 5 seconds.
Disconnect all external devices.
Disconnect any telephone or network cables from your computer.
Press and hold the Power button while your computer is unplugged to dissipate static electricity from the motherboard.
Before touching anything inside your computer, ground yourself with a wrist-grounding strap or by touching an unpainted metal surface, such as the metal at the back of your computer. While you work, periodically touch an unpainted metal surface to dissipate static electricity.
To use the jumper to reset the BIOS password
Note: On the Dell Manuals page, download the Setup Guide or Service Manual for your laptop. Then refer to the System Board Components section for a labeled illustration of the jumpers on the motherboard.
Ensure that your work surface is flat and clean to prevent scratching your laptop's cover.
Remove the battery from your laptop.
With your laptop still turned off and unplugged, remove the cover.
To locate the password jumper on the motherboard, look for the letters PWD, PSWD or PSWDCLR.
Choose an option:
If there are 2 metals pins under the jumper
Remove the jumper from the pins, replace the cover, reconnect the power cable and turn on your laptop.
After the Windows logon screen appears, turn off your laptop.
Again, disconnect the power cable. Press and hold the power button for 10 seconds to release static electricity from the system.
Remove the cover.
Replace the jumper in its original position covering the 2 pins. This will re-enable password feature.
Replace the cover.
Reconnect the power cable and other connections, replace the battery and turn on your laptop.
If there are 3 pins under the jumper
Remembering which two pins are covered, remove the jumper from those pins.
Reinstall the jumper in a different position. For example, if you removed the jumper from pins 2 and 3, reinstall the jumper over pins 1 and 2.
Replace the cover and reconnect the power cable.
Turn on your laptop and wait 5 seconds. Then press and hold the Power button until it turns off again.
Disconnect the power cable again. Press and hold the power button for 10 seconds to release static electricity from the system.
Replace the jumper over the original 2 pins.
Replace the cover.
Reconnect the power cable and other connections, replace the battery and turn on your laptop.
You can now assign a new system and/or setup password. For more password information, refer to the Passwords section of your laptop's service manual.