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.

Inspiron 3646 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 Dell System BIOS update and is supported on DELL Inspiron 3646 for Windows and DOS Operating Systems.
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Fixes & Enhancements

Fixes:
- Not Applicable

Enhancements:
- Enhanced USB 3.0 compatibility.
Read More

Version

A04

Release date

02 Sep 2014

Download Type

System BIOS

Category

BIOS

Importance

Optional
Dell Technologies recommends reviewing this update to determine if it applies to your system. The update contains changes that impact only certain configurations or provides new features that may or may not apply to your environment.
Available formats View Important Information

File Format: CPG BIOS Executable for Windows/DOS
File Name: Inspiron_3646_A04.exe
File Size: 8.51 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 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:
97639795e1d25452ef9f7c77940e79ff
SHA1:
9b02873ebceae53b60d60d963a68b70b5aa5f37a
SHA-256:
eab1cfd223ead69c7c741c0208eb7618430823c4a336c0b60c1097a2f35448b3

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

Additional details

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Do NOT power off the system until the process of updating(flashing) BIOS has been done.
Dell Inspiron 3646
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)
NOTE: You will need to provide a bootable DOS USB key. This executable file does not create the DOS system files.
1. Copy the downloaded file to a bootable DOS USB key.
2. Power on the system, then Press F12 key and Select USB Storage Drive and Boot to DOS prompt.
3. Run the file by typing copied file name where the executable is located.
4. After BIOS update finished, system will auto reboot to take effect.

Run the BIOS update utility from DOS environment if UEFI Boot Mode (Non-Windows users)
NOTE: You will need to provide a bootable DOS USB key. This executable file does not create the DOS system files.
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 Mode option.
3. Change UEFI to Legacy Boot Mode.
4. Go to Exit > Save Changes and restart system.
5. Press F12, then Select USB Storage Drive and Boot to DOS prompt.
6. Run the file by typing copied file name where the executable is located.
7. After BIOS update finished, system will auto reboot to take effect.
7. Go to BIOS Setup by pressing F2 key.
8. Change the Legacy to UEFI from F2 > Boot > Boot Mode.
9. Go to Exit > Save Changes and restart system to go back original UEFI Boot Mode.

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Note: 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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