We do operate multiple D865 desk phones and have been reasonably happy so far. They are on the latest firmware release. On one phone, the keys stopped working completely. We can still receive calls (by picking up the receiver) and the display indicates everything 100% correctly. However, no matter which key we press, the phone does not react AT ALL. We tried long-pressing the star-key - as some documentation for other snom phones hinted at a potential keypad lock - but that did not help.

Also rebooting and power-cycling did not resolve the situation. We do have full access via the Web-UI. So the phones firmware seems to run fine.

As these phones are relatively new, I'd be super disappointed if this is a (known) hardware issue.

Any hints?