Dell Inspiron 3521 System BIOS

BIOS Update Executable for Windows/DOS

Download
1. Click Download File to download the file.
2. When the File Download window appears, click Save to save the file to your hard drive.

Run the BIOS update utility from Windows environment
1. Browse to the location where you downloaded the file and double-click the new file.
2. After BIOS update finished, Windows System will auto reboot to take effect.

Run the BIOS update utility from DOS environment, if Legacy Boot mode Non-Windows users
1. Copy the downloaded file to a bootable DOS USB key.
2. Power on the system, then Press F12 key and Select USB Storage Device and Boot to DOS prompt.
3. Run the file by typing copied file name where the executable is located.
4. After BIOS update finished, system will auto reboot to take effect.

Run the BIOS update utility from DOS environment, if UEFI Boot mode with Load Legacy Option disabled Non-Windows users
1. Copy the downloaded file to a bootable DOS USB key.
2. Power on the system, then go to BIOS Setup by pressing F2 and go to Boot > Boot List Option
3. Change UEFI to Legacy of Boot List Option
4. Go to Exit > Exit Save Changes and reboot system.
5. Press F12, then Select USB Storage Device and Boot to DOS prompt.
6. Run the file by typing copied file name where the executable is located.
7. After BIOS update finished, system will auto reboot.
8. Go to BIOS Setup by pressing F2 and go to Boot > Boot List Option
9. Change Legacy to UEFI Boot Option.
10. Go to Exit > Exit Save Changes and reboot system.

Reboot will be required