ViewSonic IFP6552-1A Failing to install Android apps

[blu4]

Hi,

 

We recently acquired a lovely new interactive panel for our meeting room, a ViewSonic IFP6552-1A. I also got a camera with it for Teams meetings and so on. So the issue is- I can't seem to install any apps on the board. I have a selection of APK's but none seem to work. I double tap, click install, it does something and then says "App not installed", no other error. I have followed the guide below:

 

How to install custom apps in the Android module for IFP50 series displays : ViewSonic Customer Care (freshdesk.com)

 

I did everything as per the guide to no avail. Any ideas? I contacted ViewSonic directly but it might take time before they reply.

 

Thanks