I have two 5110s. One is fine but the one that is actually in service is far from satisfactory. It works fine for a while, it can be for over a day, and then the display will disappear. Just now I have caught it for the first time where the screen has gone black, as if it was out in the sun. It is 1 AM here.
I surely can't have a heating problem. The ambient here in the office is 26, the device is running off 3.3v, and the blue background light is so useless it is permanently disconnected. It is soldered directly onto a proto shield with about 1mm clearance, but I can't imagine ventilation to be an issue.
Is this sort of thing common with these devices?