Have a 7970G connected to a CUCM 7.1.5. The phone is powered via a brick (not PoE). After a power outage, the phone kept trying to "Upgrade firmware" but instead of successfully upgrading the firmware it kept rebooting. I tried a factory reset by holding # until the line buttons flashed amber and using 123456789*0#, and no luck. I found another thread that referenced holding # while powering the phone and then using 3491672850*#, this caused the line buttons to cycle red, the phone appears to reset, the speakerphone light goes green for a while, then the first line button goes amber and all lights go off. The phone is still plugged into power, but there is absolutely NO activity whatsoever. I've heard of people leving the phone in this state connected overnight, which I plan to do, but am wondering if the phone is actually bricked now. I've never run across this before. Anyone with a similar experience? If so, what did you do to fix it or what was the outcome? Thanks in advance.
