Creating an SD card for update
- Download the update modules from the Firmware Download Center.
 - Unzip the downloaded file.
 - Create a folder named “romdata” in the root directory of the SD card.
 - Put the unzipped file in the “romdata” folder.
 
Update procedure
- Log in to the control panel in service mode.
 - Insert the SD card into the SD card slot of the control panel. 
 - Select [Apps] > [Install] > [Install from SD Card].
 - Select the application you want to install or update, and then press [Install]
 - The installation or update results are displayed.
 - Check that the application is correctly installed or updated, and then press [reboot operation panel].