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 660s / Vostro 270s 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 provides the BIOS Update on Dell Inspiron 660s/Vostro 270s running the following Operating Systems: Windows and DOS.
To view all drivers for your Inspiron 660s, go to Drivers and downloads.
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Inspiron 660s Vostro 270s A11 BIOS.exe | 12.79 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 660s Vostro 270s A11 BIOS.exe
File Size: 12.79 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:
7cf86cefe8b084de096c41850a3c0174
SHA1:
097d9b802c75d2c11d4188208cc04d8f2f1c4a68
SHA-256:
a7b464bfabcfbb9e59c2af968771281c3de73b11b24d79eb202522c4cb3a7976

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

Fixes & Enhancements

Fixes
-Not Applicable.

Enhancements
- Change Password behavior:
System do shutdown when user enter wrong password for three times and set "Password check" to "Always".
Read More

Version

A11

Release date

19 Nov 2013

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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Do NOT power off the system until the process of updating(flashing) BIOS has been done.
A1328 Jun 2018
A1217 Apr 2018
Dell Inspiron 660s/Vostro 270s
BIOS Update Executable for Windows/DOS

Download
1. Click Download File to download the file.
2. When the File Download window appears, click Save to save the file to your hard drive.

Run the BIOS update utility from Windows environment
1. Browse to the location where you downloaded the file and double-click the new file.
2. Windows System will auto restart and update BIOS while system startup screen.
3. After BIOS update finished, system will auto reboot to take effect.

Run the BIOS update utility from DOS environment, if Legacy Boot mode(Non-Windows users)
1. Copy the downloaded file to a bootable DOS USB key.
2. Power on the system, then Press F12 key and Select USB Storage Device and Boot to DOS prompt.
3. Run the file by typing copied file name where the executable is located.
4. DOS System will auto restart and update BIOS while system startup screen.
5. After BIOS update finished, system will auto reboot to take effect.

Run the BIOS update utility from DOS environment, if UEFI Boot mode with Load Legacy Option disabled (Non-Windows users)
1. Copy the downloaded file to a bootable DOS USB key.
2. Power on the system, then go to BIOS Setup by pressing F2 and go to Boot > Boot List Option
3. Change UEFI to Legacy of Boot List Option
4. Go to Exit > Exit Save Changes and reboot system.
5. Press F12, then Select "USB Storage Device" and Boot to DOS prompt.
6. Run the file by typing copied file name where the executable is located.
7. DOS System will auto restart and update BIOS while system startup screen.
8. After BIOS update finished, system will auto reboot.
9. Go to BIOS Setup by pressing pressing F2 and go to Boot > Boot List Option
10. Change Legacy to UEFI Boot Option.
11. Go to Exit > Exit Save Changes and reboot system

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Note 1: You will need to provide a bootable DOS USB key. This executable file does not create the DOS system files.
Note 2: Please make sure you suspend BitLocker encryption before updating BIOS on a BitLocker enabled system.
If you don't enable BitLocker on your system you can ignore it.

Reboot will be required

Need help with BIOS issues?

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

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