When upgrading to Android 13 from Android 11 the update process requires a certain version of Android 11 to upgrade from.
Check your version of Android by navigating to the System > About section of the display settings.
Make sure your version is Android 11 and is Build Number 20240425 or higher.
If the version is correct, you can update the Android OS by using the System Update function.
If your version is lower than 20240425, please update your Android 11 version first by System Update and Check Now
Quick Notes:
- Before upgrading to Android 13, please upgrade Android 11 to firmware version 20240425 first.
- Eye Care and Energy Star settings will be reset to default after upgrading to Android 13.
- USB cloned data from Android 11 does not support cloning to Android 13.
You can get the firmware and instructions from the link below:
How to update ViewBoard Firmware : ViewSonic Customer Care (freshdesk.com)
If you have any technical issues, please click here to submit a support ticket.