Admin portal firmware rollback / downgrade
The Poly CCX received an update that causes handset and speaker phone to have issues and right now the only way to revert is touching every phone with a usb to downgrade to previous version of the software. The Teams admin portal should be able to give a choice of software so the software can be pushed out exactly like an upgrade.
A bit late, but for what it’s worth….
Updating poly ccx (400 and 500) from the Teams admin portal wiped out key functionality and caused a week of pain to identify and resolve issues.
Advice from poly was to not use Teams admin/device manager to push updates. Rather, only update devices via web interface (connect to device via IP address). Did this and installed latest version from poly and all is well. Very reluctant to install any teams updates now!