Download Files
File Format: 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.
File Name: Inspiron_5458_A01.exe
File size: 5.02 MB
To ensure the integrity of your download, please verify the checksum value.
MD5: ee073f153d52967b8cf68e60f23b242e
SHA1: c6de6f9e581d9bbce129cdf3744e0caaa08f26da
SHA-256: 4ab9488af8f0cec1ed99516d6cdd6d62ccc395ebacad50aa3d240ae3aa15cecd
Important Information
Initial release
Supported Operating Systems
Installation instructions
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/EC update utility from Windows environment
1. Browse to the location where you downloaded the file and double-click the new file.
2. Press "Yes" to confirm the BIOS/EC version you want to update and start BIOS/EC Update process.
3. After BIOS/EC update finished, press Yes and then system will shut down, then power on the system to take effect.
4. If only update BIOS, after BIOS update finished, press "Yes" and then system will restart to take effect
Run the BIOS/EC 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. After BIOS/EC update finished, press the power button to shut down, then power on the system to take effect.
5. If only update BIOS, after BIOS update finished, press "Yes" and then system will restart 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 Sequence > Boot List Option" Option
3. Change "UEFI" to"Legacy" Boot Mode
4. Go to "Exit > Save Changes and Reset" and then 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/EC update finished, press the power button to shut down, then power on the system to take effect.
8. If only update BIOS, after BIOS update finished, press Yes and then system will restart to take effect.
9. Go to BIOS Setup by pressing F2 and go to "Boot Sequence > Boot List Option" to change Boot Mode from "Legacy" to "UEFI".
10. Go to "Secure Boot Enable" to change Secure Boot from "Disabled" to "Enabled".
11. Go to "Exit > Save Changes and Reset" and then reboot system.
Reboot will be required