Hi, I have a new install of 3CX v12 on 2008R2 Hyper-V machine and some new Yealink T22 phones running on an old firmware. If I go to the "Phones" view and select the phone I can't click "Upgrade firmware". Looking in the phone provisioning folder I have empty directories for the firmware. I've tried adding the firmware ROM files into the directory, but this still doesn't give me the "Upgrade firmware" option in the Phone view still. Can anyone help please? Thanks.