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 15 3511 and Vostro 15 3510 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. This update addresses Common Vulnerabilities and Exposures (CVE). Common Vulnerabilities and Exposures (CVE) is a list of security vulnerabilities and exposures that are publicly disclosed.
To view all drivers for your Inspiron 15 3511, go to Drivers and downloads.
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Inspiron_Vostro_3511_1200.exe | 70.5 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.

File Format: CPG BIOS Executable for Windows/DOS
File Name: Inspiron_Vostro_3511_1200.exe
File Size: 70.5 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:
01ec3f36db9480cb27cf4effc587c20e
SHA1:
055ef9952df3ed42898ae1f081df09f30459a336
SHA-256:
e03a5fbf2cfcda547e9488732c8b424b33760fff184738e35eeb70e559c3cda0

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

Fixes & Enhancements

- Firmware updates to address security vulnerabilities including (Common Vulnerabilities and Exposures - CVE) such as CVE-2022-30704.
- Fixed the issue where the Show Password option is not displayed under the Wireless Networks in the BIOS setup.
- Fixed the issue where the Dell logo is displayed incorrectly when the system boots to the operating system and the system lid is closed.
- Fixed the issue where the system auto wakes up on days not selected by you in the Auto On Time function in the BIOS setup.
Read More

Version

1.20.0, 1.20.0

Release date

11 Jan 2023

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: 70.49 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:
42b494c4f374e0f29a967c88804b06a5
SHA1:
eadbe21d2ace76bd290cffc202cafa3815d4126e
SHA-256:
9eb3e37c269787c1aac3bc9de3f40786b683461dacf51095c77316b223dfdd97

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

Additional details

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- Once the BIOS is upgraded, you cannot downgrade the BIOS to versions earlier than 1.5.1. BIOS downgrades are restricted when there are security updates and important fixes with earlier versions that impact the functionality of the system.
- 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.
1.28.015 May 2024
1.27.014 Mar 2024
1.26.006 Feb 2024
1.25.114 Nov 2023
1.24.011 Sep 2023
1.23.008 Aug 2023
1.22.113 Jun 2023
1.21.011 Apr 2023
1.19.015 Dec 2022
1.18.221 Nov 2022
1.15.116 Aug 2022
1.14.011 Jul 2022
1.13.013 Jun 2022
1.12.118 May 2022
1.11.013 Apr 2022
1.10.221 Mar 2022
1.9.017 Feb 2022
1.8.012 Jan 2022
1.7.113 Dec 2021
1.6.009 Nov 2021
1.5.131 Aug 2021
1.4.030 Jul 2021
1.3.029 Jun 2021
1.2.025 Jun 2021
Dell Inspiron 15 3511 and Vostro 15 3510 System BIOS
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 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.

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. The USB drive does not need to be bootable device.
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 progress bar at the Dell logo screen. The system restarts again when the update is complete.

Need help with BIOS issues?

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

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