Hello,
Solved
I will try to explain what I think is going on and how I have solved it for that other people in the same case, have this help, although I think it is not going has happened to many people, usually I happen rare and unique things with artifacts

I am not an Android expert but I know something, maybe I don't use the appropriate technical terms. This is my hypothesis:
For some strange reason, my Himedia must have some partition of the system as read only, blocked or something like that. In Himedia default I have the Facebook and Skype applications. Even if I uninstall them, Himedia turn off and on again, they reappear like a nasty rash in the a**. The Wrapper application, even if you entered the user/password data, if you checked in Android Application Settings, the application consumed space in data always told me that 0 bytes.
How have I solved it?
I uninstalled the wrapper application and without restarting, I installed the wrapper application again (downloaded from a forum link). When you do this, the new downloaded apk, installs itself on a different partition than the system and stores the data in a different location. Now if when I configure the wrapper with the user/password samba and I give it to save, the saved correctly (and in Android Aplications Setting it appears to me that it takes up data space).
In any case, it would be nice if the wrapper apk put asterisks in the field key for security purposes.
Excuse me for my unfortunate English

Thanks.