Ive had the same issues with my XLT ecoboost and will address it at the next oil change with the dealership..Did update to my radio and it seemed to cure the problem of the screen freezing and controls as well .
Almost 9K miles and still like my little truck. Using the Ford CC points to get the tonneau cover for free but is taking some time due to an overpriced Ford tonneau cover.
Yes there is a Service Bulletin from Ford addressing the radio freezing issue. Someone has posted the number of the Service Bulletin. I could be wrong but I believe it was SSM 50411, sorry if its not the right one. I have over 7K miles and mine has froze once. Good luck