Thanks U, and others who would like to help:
1-So the 4 no longer is allowed to update?
2- And the 5 is on last breath?
3- And the 7 has how much life?
4-What are the main downsides to not being able to update the ios?
5- Would you have a full time phone without ability to update ios?
6-Do you consider this an important determinant of whether to continue with a model replacement?
