We've just provisioned a brand new phone having installed 3CX 12.5 Beta earlier today. All seemed fine until the provisioning worked and loaded the new profile and then the phone LCD screen started to go blank, just showing "YEALINK" for around 3 seconds and kept doing this every 8 seconds. We updated the firmware to 18.104.22.168 but that made no difference. Reset to factory defaults and again, all fine until it was provisioned. However if we reset to defaults and then manually configure the phone with the SIP connection settings then everything seems just fine and the screen is rock solid. Any suggestions?