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.
To view all drivers for your Inspiron 15 3511, go to Drivers and downloads.
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Inspiron_Vostro_3511_171.exe | 69.44 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.
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File Format: CPG BIOS Executable for Windows/DOS
File Name: Inspiron_Vostro_3511_171.exe
File Size: 69.44 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:
8db43893edcf117513a6a85b7bf02a6b
SHA1:
bc62cc5508414e352d8e3228f28f6fb63fe5a2d9
SHA-256:
4ec7bd6639e04a31f07e5d352d59c7969a777a05f646cd651fee33bf9e83f833

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

Fixes & Enhancements

- Fixed the issue where the open applications on an external display are shown on the system display after the system resumes from Sleep state.
- Fixed the issue where the VPN stops working after the system resumes from Sleep state. This issue occurs when the system is connected to the Internet through an Ethernet cable that is connected to the Thunderbolt dock.
- Fixed the issue where the external monitor does not display anything after resuming from Sleep state.
- Fixed the issue where the system does not detect Micron 2300 solid state drives after resuming from Sleep state.
- Fixed the issue where the complete administrator and system passwords characters are not captured when using barcode scanner or the system keyboard.
- Firmware updates to address security vulnerabilities.
Read More

Version

1.7.1, 1.7.1

Release date

13 Dec 2021

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: 69.44 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:
1e3820703bedc86c448f12645fc1d071
SHA1:
c557387dcb80f427efdd71a0af3c4727c37d7f7e
SHA-256:
71d171b28a8642f612fd0a2763d33768f1b4ca188559fde85a6b4f014262dccd

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 EXE/Recovery (RCV) 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
1.20.011 Jan 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
1.6.009 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 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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