As the title states, my phone is flashing all three colors. The only thing that changed before this started happening, is that the phone was unplugged to be cleaned. After plugging it back in, the top buttons on both sides of the screen are flashing through each color, red, amber, and green. I am logged into it correctly and the phone appears to function as it should. I could not find anything online about all three colors flashing like this. I only found reasons for flashing of single colors. Any ideas?
12.5 did not fix the issue for me, it started at 12.5. Only seen on one phone so far though.
Out of the box, the phone had 12.1. I upgraded to 12.5 to add KEM support.
I rolled back to 12.1 issue persisted. I upgraded to 12.5 again issue persisted.
I rolled back to 11.7 issue cleared. Upgrading to 12.5 from 11.7 did not bring the issue back.
So the problem seems to be linked to both the software you move from and to.
CP8865 running firmwares:
I found this same symptom in a phone I just unboxed. It seemed to register properly, but the flashing lights persisted. I upgraded the firmware on the CUCM server for the 8800 models to version 12.7, although I read that the bug was fixed in version 12.5. When the phone re-registered and upgraded, the flashing stopped.