Do not turn off your computer or disconnect from the power source while updating the BIOS as this could harm your computer. During the update, your computer will restart and you may briefly see a black screen.

Before updating, please read the installation instructions and important information noted below.

Dell Precision 3560 and Latitude 5520 System BIOS

Restart required Installed This file was automatically installed as part of a recent update. If you are experiencing any issues, you can manually download and reinstall.
This package contains the Dell system BIOS update. BIOS is a firmware package that is embedded on a small memory chip on the system board. It controls the keyboard, monitor, disk drives, and other devices.
To view all drivers for your Latitude 5520, go to Drivers and downloads.
Recommended
Loading the latest available version of the driver...

This is the latest Dell validated version of this driver

This is not the latest Dell validated version of this driver

Precision_3560_Latitude_5520_1.46.0.exe | 44.41 MB
Enter the Service Tag of your device to check the compatibility of this download with your device.
This is a large file. Depending on your connection speed, it may take some time to download.
Download Go to Latest Version
Show details | Download current version instead | View other downloadable formats
File Format: CPG BIOS Executable for Windows/DOS
File Name: Precision_3560_Latitude_5520_1.46.0.exe
File Size: 44.41 MB
Format Description
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.
To ensure the integrity of your download, please verify the checksum value.
MD5:
02edd6a59a6f271c345ba5a39fa1f5c7
SHA1:
590696d6cd28321fb90db9419c3556d4020faf5c
SHA-256:
b2856018b90761da5f199c868c55840e10d0a488bf82311700ff599ea78bb3dc

Find more updates. Use SupportAssist to find all the latest driver updates for your device.

Fixes & Enhancements

- Improved the stability of the system.
Read More

Version

1.46.0, 1.46.0

Release date

10 Sept 2025

Download Type

System BIOS

Category

BIOS

Importance

Critical
Dell Technologies highly recommends applying this important update as soon as possible. The update contains critical bug fixes and changes to improve functionality, reliability, and stability of your Dell system. It may also include security fixes and other feature enhancements.
View Important Information
File Format: BIOS Recovery Image File
File Name: BIOS_IMG.rcv
File Size: 44.41 MB
This is a large file. Depending on your connection speed, it may take some time to download.
Format Description:
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.
To ensure the integrity of your download, please verify the checksum value.
MD5:
02edd6a59a6f271c345ba5a39fa1f5c7
SHA1:
590696d6cd28321fb90db9419c3556d4020faf5c
SHA-256:
b2856018b90761da5f199c868c55840e10d0a488bf82311700ff599ea78bb3dc

By downloading, you accept the terms of the Dell Software License Agreement.

Additional details

Show All | Hide All
- This BIOS contains the new 2023 Secure Boot Certificates.
- Once the BIOS is upgraded to version 1.40.0 or later, you cannot downgrade the BIOS to earlier versions. BIOS downgrades are restricted when there are security updates and important fixes with earlier versions that impact the functionality of the system.
- If you want to upgrade BIOS from version 1.13.0 or previous to version 1.17.2 or later, ensure to upgrade version 1.15.2 first, and then you can upgrade to a newer BIOS version.
- 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.
1.47.011 Nov 2025
1.45.215 Aug 2025
1.44.110 Jun 2025
1.43.014 Apr 2025
1.42.012 Feb 2025
1.41.017 Dec 2024
1.40.012 Nov 2024
1.39.008 Sept 2024
1.38.008 Jul 2024
1.37.011 Jun 2024
1.36.009 Apr 2024
1.30.014 Aug 2023
1.29.012 Jul 2023
1.28.113 Jun 2023
1.27.011 Apr 2023
1.26.221 Mar 2023
1.25.112 Jan 2023
1.24.316 Nov 2022
1.21.016 Aug 2022
1.20.008 Jul 2022
1.19.115 Jun 2022
1.18.109 May 2022
1.17.213 Apr 2022
1.15.224 Jan 2022
1.13.011 Nov 2021
1.12.222 Sept 2021
1.11.126 Aug 2021
1.10.021 Jul 2021
1.8.101 Jul 2021
1.7.121 Jun 2021
1.6.003 May 2021
1.5.112 Apr 2021
1.4.216 Mar 2021
1.3.005 Mar 2021
1.2.721 Jan 2021
1.0.204 Jan 2021
Latitude 5520;Precision 3560
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.
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.

Need help with BIOS issues?

Find a solution in Dell's BIOS troubleshooting guide

Drivers help and tutorials