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 Inspiron 5402/5409/5502/5509 and Vostro 5402/5502 System BIOS

Restart required AUTO 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 Inspiron 5502/5509, go to Drivers and downloads.
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Inspiron_Vostro_5402_5409_5502_5509_1.1.5.exe | 16.52 MB
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File Format: CPG BIOS Executable for Windows/DOS
File Name: Inspiron_Vostro_5402_5409_5502_5509_1.1.5.exe
File Size: 16.52 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:
6e6988b353f459ad9c20eef47030630c
SHA1:
e04b45c0c802279f476bd5aac909d3c96902e435
SHA-256:
9cbe728e62304bb485da922105e86a3d64ccfae3027dbd9a7e8a05ceed601ab6

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

Fixes & Enhancements

- Enhanced the functionality of solid-state drives in AHCI mode.
Read More

Version

1.1.5, 1.1.5

Release date

07 Nov 2020

Download Type

System BIOS

Category

BIOS

Importance

Recommended
Dell Technologies recommends applying this update during your next scheduled update cycle. The update contains changes to maintain overall system health. It ensures that the system software remains current and compatible with other system modules (firmware, BIOS, drivers, and software) and may include other new features.

Additional details

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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.
1.29.008 Apr 2024
1.28.006 Feb 2024
1.27.012 Dec 2023
1.26.008 Nov 2023
1.25.015 Sep 2023
1.24.012 Jul 2023
1.22.011 Apr 2023
1.21.010 Mar 2023
1.20.113 Feb 2023
1.19.013 Dec 2022
1.18.011 Oct 2022
1.17.012 Sep 2022
1.16.008 Aug 2022
1.15.006 Jul 2022
1.14.008 Jun 2022
1.13.009 May 2022
1.12.012 Apr 2022
1.11.009 Mar 2022
1.9.011 Jan 2022
1.8.009 Nov 2021
1.7.117 Aug 2021
1.6.020 Jul 2021
1.5.123 Jun 2021
1.4.114 Apr 2021
1.3.001 Apr 2021
1.2.008 Mar 2021
1.1.704 Jan 2021
1.1.614 Dec 2020
1.1.309 Oct 2020
Inspiron 5402, Inspiron 5409, Inspiron 5502, Inspiron 5509,
Vostro 5402, Vostro 5502,
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.

Need help with BIOS issues?

Find a solution in Dell's BIOS troubleshooting and usage guide.

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