Sometimes when updating software, the installer will download incorrectly and cause a failure. If this happens, you will need to contact support, who will walk through the update process using a USB stick.
How to update the software via USB
Download the zipped file from the link and then unzip.
Add to the root of a USB flash drive, hht828X9_Upgrade.bin, VCTL_OVS....config, and Update_signed.zip (do not unzip this file). Ensure the USB flash drive is formatted to FAT32 and has a file size between 2 - 16GB.
To start, make sure the panel is powered OFF. Plug the USB flash drive into the front USB 2.0 port and then turn ON the panel.
After the blue loading screen reaches 100%, the panel will turn off. Leave the USB flash drive plugged in and power ON the panel.
The panel may or may not show a split-screen, but the update process is running in the background. Please wait until the process has finished and the screen will turn OFF.
Turn the panel ON. Wait for the Touch to start screen to load.
Touch screen to enter the homepage. The system will notify you that it will upgrade the configuration file. Ignore the Import Version Config message. After 10 seconds, the system will automatically upgrade the configuration file.
After the upgrade process has finished, the panel will turn off again. Turn ON the panel and wait until it takes you back to the homepage.
When you're on the panel's homepage, click 2,5,8,0 on the remote to access the Design Menu.
Select Common function and then Upgrade Update Signed.
Restart the panel after it shuts down.
When at the homepage of the panel, remove the thumb drive to complete the firmware process