I have some 8841 phones and the Date/Time group is set to Y-M-D. However, the year does not display. In firmware version sip88xx.11-5-1SR1-1, the year did display. In firmware version sip88xx.11-7-1-17 and sip88xx.12-0-1-8, the year does not display.
The only changes made was the firmware. I can roll it back and the year will display.
Is this a firmware issue, or have I missed something?