I forgot to say that the first step I did in an factory unlocked iphone to be able to select the telephonic company at the Turbo sim rsim 11+ menu .....
now I only need the configuration for sprint who helps me. Sprint iPhone can call and receive call but not sent SMS also not signal bar say No Serbocroata
Check the video for at&t and tmobile configuration
https://www.youtube.com/watch?v=cFbLLHxxW3E