Since installing the most recent firmware update I have been having errors with “cellphone style” typing on the s2400. Specifically when pressing number f4 to cycle through a, b, c, d each button press skips two letters making it impossible to access b or d. Also when I press f2 to insert, it doesn’t allow me to just put a space it inserts the last letter entered behind the space which makes me have to delete that letter before I can continue typing.
I will say that I had some issues updating the firmware and had to do a forced firmware update so not sure if that affected anything.