Trying to add 4th phone (upgrading from Polycom VVX). Upon boot, I see Auto Provision request, but shows "Update Skipped!". Factory Reset, Reboot server, tried adding to extension, not sure what I'm missing this time around...
I manually entered provision URL via Phone interface, and provisioned = Good. I did note that the firmware shows as "Not supported": Not Supported 66.84.0.35 My prev phones are running 66.83.0.55, but 66.84.0.35 is what is on 3CX download. Hmmm.
Firstly I would recommend to update your PBX to V15.5.15502.6
"Update skipped" is normal on Yealink, that should not be considered a problem in your setup
Latest Version on 3CX V16 = 66.84.0.35
Latest Version on 3CX V15 = 66.83.0.55 -> Use this one in your case, can be downloaded via your Dashboard
Select the device from the Phones menu in the dashboard, and click +Firmware to update it to the compatible firmware version. If this is not possible, you can get the firmware file from your PBX folder under: