It used to be that hitting the refresh arrow/loop button in preferences -> account would pull down a new provisioning profile with all ur new devices.
Now it just do
I also had this problem. I am using Xcode 7.2
. Then its worked with following steps:
Now you can run the app in your new device.
Simplest way:
Remove the mobileprovision file using terminal
rm + drag the file path from xcode