There were some really good. Nokia Symbian phones and some not so good ones. An issue back then was that not all apps were available for all phones. They would probably have fixed this if it hadn’t been for Elop killing them.

Looks like somethings that could always be worth a try, but as they show; it works well with some models in some applications and in other cases it doesn’t. Maybe it is actually a nudge of a model to something it hasn’t seen during initial training.