help to change the functions of the remote control in digital TV decoders with ic gx3113b of the national chip family.

good afternoon friend you know some procedure that allows to make changes in the functions of the remote control in digital or sat tv decoders that use micro ic gx3113b of the national chip family, apologize for the translation is that I do not speak English on this site download a program called All Moresat firmware backround Viewer2009 the same probe it with one of the fw of the digital TV box sold in Cuba as the boxes soyea SPD-160 and I achieved show the screen background well