We are deploying the new version on the Team OS to our Surface Hub 2S so that we can use MS Teams to join meetings as this is our primary meeting and collaboration tool. The OS install successfully and we can create the device account however the Teams App says it needs to update. We have tried updating the app from both the Windows Store and via EndPoint Manager (offline copy) and when we do this Teams claims to launch but displays a black screen.
We have looked at various articles to fix this but most refer to Windows 10 OS not Windows Team so the fixes are not able to apply. We do not want to install Windows 10 Enterprise on these devices as we also have Surface Hub 1's on the estate that do not support that OS.
I have also excluded the account from conditional access to see if this helps with the issue but the problem is still there.
A black UI on Teams probably means that the application did not sign in. Besides CA, please make sure that the network is configured correctly, best test would be a mobile hotspot as your internet connection. MFA should also be disabled. Also, Azure sign-in logs is a good place to start.
If these check out, please open a support case with Surface Hub and an engineer will help you