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 5455/5555/5755 System BIOS System BIOS A12
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 Dell System BIOS update and is supported on Dell Inspiron 5455/5555/5755 for Windows and DOS Operating Systems.
To view all drivers for your Inspiron 5555, go to Drivers and downloads.
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5455A12.exe | 6.53 MBEnter 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:
5455A12.exe
File Size:
6.53 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:
a081a7c2225871c49b694b3e68a56e90
SHA1:
31c48c1ba16fa86cafb1ce8ec64e480dd2a31246
SHA-256:
f253164f43d294aadad9d636b7b4bab9ec28baac39903406d292b2594afc8f67
Sign in to Windows as an admin to use automatic scan. If your're already signed in as an admin and seeing this message, please reboot.
Your system is managed by your IT admin and features might be limited.
Find more updates. Use SupportAssist to find all the latest driver updates for your device.
Fixes & Enhancements
Fixes
- Not Applicable.
Enhancements
- Improved dGPU VBIOS VRAM support.
- Improved BIOS Flash utility.
Read More
- Not Applicable.
Enhancements
- Improved dGPU VBIOS VRAM support.
- Improved BIOS Flash utility.
Version
A12, A12
Release date
02 Sep 2016
Download Type
System BIOS
Category
BIOS
Importance
RecommendedDell 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.
Supported Operating Systems
BIOS
Looking for a different OS? View the list of Dell supported operating systems
Applies to
Dell Inspiron 5455/5555/5755
Installation instructions
[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 (Non-Windows users,Load Legacy Option ROM Disabled)]
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. After BIOS update finished, system will auto reboot.
8. Go to BIOS Setup by pressing pressing F2 and go to "Boot > Boot List Option"
9. Change "Legacy" to "UEFI" Boot Option.
10. Load Legacy Option ROM->Enabled
11. Go to "Exit" > Exit Save Changes and reboot system
Reboot will be required
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 (Non-Windows users,Load Legacy Option ROM Disabled)]
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. After BIOS update finished, system will auto reboot.
8. Go to BIOS Setup by pressing pressing F2 and go to "Boot > Boot List Option"
9. Change "Legacy" to "UEFI" Boot Option.
10. Load Legacy Option ROM->Enabled
11. Go to "Exit" > Exit Save Changes and reboot system
Reboot will be required
Need help with BIOS issues?
Find a solution in Dell's BIOS troubleshooting and usage guide.Drivers help and tutorials
For more downloads go to the Drivers and downloads.
For help on using the information on this page, please visit Driver Help and Tutorials.