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: M4800A04.exe
File size: 9.46 MB
To ensure the integrity of your download, please verify the checksum value.
MD5: 2e0735f789e685a67c644c0342caf712
SHA1: 5c3b7dbe7f68a752043ea192592f92d32df77ca9
SHA-256: cda1ff6284bf4d3d9dfe59729e6d570791874c612e93325e601b280c51cf78b3
Fixes & Enhancements
Fixes:
1. Fixed External USB Port Disable malfunction after resume from sleep.
2. Fixed screen behavior abmormal after HDD password is entered in UEFI mode.
3. Fixed Memory Change Notification not working.
Enhancements:
1. Enhanced USB key boot support.
2. Enhanced power-saving when plug not recommended adaptor.
3. Enhanced iSCT support.
4. Added TouchScreen input support in Diagnostics. (TouchScreen sku only)
5. Improved TPM support.
6. Improved CCTK support.
Important Information
Important: You must update the USB 3.0 driver to A02 or later after the BIOS update if your M4800 is running in Windows 7
Supported Operating Systems
Installation instructions
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 (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)
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 General > Boot Sequence > Boot List Option
3. Change UEFI to Legacy of Boot List Option.
4. Click Apply, Exit to 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 F2 and go to General > Boot Sequence > Boot List Option
9. Change Legacy to UEFI Boot Option.
10. Click Apply, Exit to 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