We also have the same issue and have been reinstalling / updating / resetting our Poly X30/X50. I am very interested in Microsoft response to your support ticket.
Hi, I have now version 3.5.0-344025 installed on the X30 and 3.5.0-210489 installed on the TC8.
And the first result are good. Did not have to sign in or reset something.
Just power everything on and ready to go as you would expect.
So I think for this issue you should upgrade. Please note that this firmware is not active supported by Microsoft on the TAC version 188.8.131.526154 is the latest.
I also experience this issue. Can I enter the meeting room O365 account and the password in the settings so I don't need to enter it on the screen with the trio virtual keyboard ?
Hello @Stephane Bouillon
You should not be using such an old build. I suggest upgrading to 3.7.0 and then follow the below.
Our Partner Microsoft has released the 2021 Update 2D 1449/184.108.40.2061092701 via the TAC Teams Admin Center which should address the no Video issues reported. Please update this on both the Studio X and the TC8 via the TAC.
Any additional questions should be referred to our partner Microsoft quoting VSO 265756 and 264643. and Microsoft case #27504410. These are internal references a Microsoft support engineer should have access to.