Well, S55/S65 suports only PDU, unfortunately


I will get the book, because this is not my last project related to this matter.

Regarding datasheets. It is quite a tricky one, to find a complete datasheet for the phone. Even service manual i managed to find in internet, has the stamp on it: "For internal use only". So it is pretty much of poking and trying here and there, or call it guessing, if you will. And if the models of the phone are relatively new..