Hello, i have my Samsung S 4 which came with cyanogenmod. I think that is what makes me limited when entering UMTS but i dont really know.
When i type *#197328640# for example, nothing happens, i tried this with other codes and again, nothing happens. What can i do to make it work? I need to access this feature of the telephone and i cant.
Thanks in advance and sorry for my bad english, im not a native speaker.