Download Files
File Format: This file format consists of a BIOS executable file. The Universal (Windows/MS DOS) format can be used to install from any Windows or MS DOS environment.
File Name: Inspiron_5480_5488_5580_5482_5582_Vostro_5481_5581_2.15.1.exe
File size: 16.89 MB
To ensure the integrity of your download, please verify the checksum value.
MD5: ad6b96881d7f2c041f2540182ef77561
SHA1: 2fc6e65cb197ec335c735b2c4eeb6ec9dd745457
SHA-256: 6b48df999ce7308a965f62a09128351ccb172d1e8637fae1aef2f97b290b170d
File Format: This file format consists of a BIOS Recovery image file. This file is used for the System BIOS Recovery process to recover a system from a corrupted BIOS.
File Name: BIOS_IMG.rcv
File size: 16.89 MB
To ensure the integrity of your download, please verify the checksum value.
MD5: ad6b96881d7f2c041f2540182ef77561
SHA1: 2fc6e65cb197ec335c735b2c4eeb6ec9dd745457
SHA-256: 6b48df999ce7308a965f62a09128351ccb172d1e8637fae1aef2f97b290b170d
Fixes & Enhancements
- Fixed the issue where the system takes time to boot to the operating system. This issue occurs after upgrading the system to the Windows 11 operating system.
Important Information
- The BIOS installer page is displayed twice during the installation. Once during the initial installation and once after the system restarts. Ensure that you click the update button on the second installer page to complete the installation.
- BIOS updates take no more than 5 minutes to be installed on your system. You can install the updates in the background while using the system.
Supported Operating Systems
Installation instructions
Updating the BIOS from Windows
Note 1: Before updating the BIOS, ensure that you suspend BitLocker encryption on a BitLocker-enabled system. If BitLocker is not enabled on your system, you can ignore this step. For information about how to disable BitLocker, see How to Enable or Disable BitLocker with TPM in Windows at support.dell.com.
Note 2: Do not turn off power or interrupt the BIOS update process during the update.
Note 3: Your system requires a restart after installing the BIOS. The restart can be deferred but must be completed to ensure that the update is installed.
Download and Installation
1. Click Download File.
2. Click Save to save the file to your hard drive.
3. Browse to the location where you downloaded the file.
4. Double-click the new file.
5. The system restarts automatically and updates the BIOS at the system startup screen. After the BIOS update is complete, system restarts again.
Updating the BIOS from BIOS Boot Menu (independent of operating system)
Note 1: Before updating the BIOS, ensure that you suspend BitLocker encryption on a BitLocker-enabled system. If BitLocker is not enabled on your system, you can ignore this step. For information about how to disable BitLocker, see How to Enable or Disable BitLocker with TPM in Windows at support.dell.com.
Note 2: Do not turn off the power or interrupt the BIOS update process during the update.
Note 3: Your system requires a restart after installing the BIOS. The restart can be deferred but must be completed to ensure that the update is installed.
Installation
1. Copy the downloaded file to a USB drive. You do not need a bootable USB drive.
2. Insert the USB drive into any USB port.
3. Power on the system.
4. At the DELL logo screen, press F12 to access the one-time boot menu.
5. Select BIOS Flash Update in the Other Options section.
6. Click the ... button to browse the USB drive to locate the downloaded file.
7. Select the file and click OK.
8. Verify the existing system BIOS information and the BIOS update information.
9. Click Begin Flash Update.
10. Review the Warning message and click Yes to proceed with the update.
The system restarts and displays a Flash Progress bar at the Dell logo screen. The system restarts again when the Flash update is complete.
Applies to
Dell Inspiron 5480/5488/5580
Dell Inspiron 5482
Dell Inspiron 5582 System BIOS
Dell Vostro 5481/5581 System BIOS