How to refresh the BIOS of the ASUS UX21E series is as follows:
1. First of all, please Make sure that the BIOS program downloaded from the ASUS official website is consistent with the system. After that, please confirm that the WinFlash software has been installed. The program can be found in the driver CD. Then run the program. The steps are as follows: Start-All Programs\ASUS Utility\WINFLASH\WINFLASH.
2. Select and open the directory where the BIOS file is located.
3. Please confirm the loaded BIOS file information, such as model and date.
4. Click "Flash" to start refreshing the BIOS.
5. Click "Close" after the refresh is complete.
6. Restart the system. In order to check whether the BIOS refresh is successful, please press F2 to enter the BIOS when the ASUS icon appears, and check the current BIOS version number.
7. Please enter the BIOS SETUP interface, then enter the EXIT sub-interface, and select "Load Optimal Defaults", then select "Save and Exit", and then restart the system.