Camera works in teams; no camera feed for participants

I got ours to work but not exactly sure which step resolved the issue.  I totally reset our Lenovo Smarthub to factory defaults.  Used a combination of these resources:

https://smartsupport.lenovo.com/lv/en/products/smart/smart-office/thinksmart-hub-500/solutions/ht509682-microsoft-teams-rooms-shows-black-screen-after-push-button-recovery 

https://docs.microsoft.com/en-us/MicrosoftTeams/rooms/recovery-tool 

Hub 500: "signing in" loop 

https://forums.lenovo.com/t5/ThinkSmart/Error-signing-in-loop/m-p/5020054 

Had the same problem with devices that were shipped for us. Demo units worked fine with same account/network so it was a bit baffling. 

We updated Skype Room System software from Windows Store, that fixed the problem. https://docs.microsoft.com/en-us/microsoftteams/rooms/rooms-release-note, ours was on 4.2.4.0. To do this update: 

1. Log into device with admin account, open Edge 
2. Open https://www.microsoft.com/en-us/p/skype-room-system/9nblggh5799l 
3. Click Get, Windows Store should open 
4. If you click Install, you will be asked for Microsoft account. Instead click 3 dots (upper right corner) > Downloads and Updates 
5. Click update For Skype Room system. It takes some time (update is 600MB), but eventually entry for update should disappear 
6. Restart device, you will now see new splash screen with Teams logo. First boot seems to fail, software should restart itself (you will see bunch of windows opening/closing) 
7. After a while you should be logged in with full Teams experience. 
8. If calendar access does not work, in device settings enable modern authentication 

Teams Room App in Microsoft Store 

https://www.microsoft.com/en-us/p/microsoft-teams-for-surface-hub/9pczm4lgf8s6?activetab=pivot:overviewtab 

TravisAlbright