I found this in the Mobile Center 3.2 online documentation concerning older Android devices:
For Samsung devices running an Android version below 9.0, perform the following steps to allow access via the remote device view. Some of the devices with this known issue are Note 8 (SM-N950F), Note 9 (SM-N960F), S9 (SM-G960F), and S9 Plus (SM-G965F).
- Locate the connector.properties file.
Server and Connector: <path to your MC server installation folder>/server/conf
Remote Connector: <path to your MC connector installation folder>/connector/conf
- Open the file and add the device models, separated by commas, to the android.javavnc.model.enable property. For example:
android.javavnc.model.enable=LG-H990,Nexus 5X,Nexus 4,LG-H961N,Nexus 9,LG-H870,ONEPLUS A5000,LG-D855,ONEPLUS A3000,SM-N950F,SM-N960F,SM-G960F,SM-G965F
- Restart the Server/Connector for the changes to take effect.
So, these directions tell you that you will need to add the Joya Touch A6 Model type to the android.javavnc.model.enable property in the connector.properties file located in the connector's connector/conf directory or the server's server/conf directory if you are connecting the devices directly to the server.
Please note this fix is for devices running older versions of the Android OS (9.0 and earlier)
The documentation mentions Samsung devices, but we have found this works for other android devices running the older versions of the Android OS.