I've got 3 recently acquired SPA942s which have started doing strange things with their displays.
Two of them, from different retailers, have started to flip the display horizontally and vertically. I've attached a picture of this.
The third phone is apparently shifting the top bar (with the time, etc) down occasionally, until it disappears off the bottom. I haven't seen this one personally, and I don't have any further details.
One of the inverting phones, and the, uh, sliding-off-the-bottom phone both came from one retailer, in the last month. The other inverting phone came from a different retailer a few months ago. The inverting phones started doing it within a day of each other, maybe two weeks ago. The other behavior started just last week.
The phones continue to operate normally, and resetting the power gets them back to normal for awhile. All three affected phones are on 6.1.5(a), and
their hardware version is 2.0.3(2837). I've got two SPA942s on 6.1.5(a) which are unaffected, they're hardware version 1.0.0(242c).
Some sort of work around would be swell; while it doesn't actually prevent the phones from being used, our employees find it distracting.