Steps
1. Remove the
.
2. Disconnect the battery cable from the system board.
3. Remove the
.
4. Wait for one minute.
5. Replace the
.
6. Connect the battery cable to the system board.
7. Replace the
.
Clearing BIOS (System Setup) and System passwords
About this task
To clear the system or BIOS passwords, contact Dell technical support as described at
.
NOTE:
For information on how to reset Windows or application passwords, refer to the documentation accompanying
Windows or your application.
Updating the BIOS
Updating the BIOS in Windows
Steps
.
2. Click
Product support
. In the
Search support
box, enter the Service Tag of your computer, and then click
Search
.
NOTE:
If you do not have the Service Tag, use the SupportAssist feature to automatically identify your computer. You
can also use the product ID or manually browse for your computer model.
3. Click
Drivers & Downloads
. Expand
Find drivers
.
4. Select the operating system installed on your computer.
5. In the
Category
drop-down list, select
BIOS
.
6. Select the latest version of BIOS, and click
Download
to download the BIOS file for your computer.
7. After the download is complete, browse the folder where you saved the BIOS update file.
8. Double-click the BIOS update file icon and follow the on-screen instructions.
For more information, see knowledge base article
.
Updating the BIOS using the USB drive in Windows
Steps
1. Follow the procedure from step 1 to step 6 in
to download the latest BIOS setup program file.
2. Create a bootable USB drive. For more information, see the knowledge base article
.
3. Copy the BIOS setup program file to the bootable USB drive.
4. Connect the bootable USB drive to the computer that needs the BIOS update.
5. Restart the computer and press
F12
.
6. Select the USB drive from the
One Time Boot Menu
.
7. Type the BIOS setup program filename and press
Enter
.
The
BIOS Update Utility
appears.
8. Follow the on-screen instructions to complete the BIOS update.
System setup
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