D dmoss7 Well-known member Apr 24, 2014 91 0 0 Apr 21, 2017 #1 Who uses the SIM card that comes pre-installed and who swaps them from phone to phone?
jcp007 Trusted Member May 17, 2012 6,966 84 0 Apr 21, 2017 #2 It depends. Sometimes AT&T changes card configuration so it is necessary once in a while. Otherwise, it's up to you.
It depends. Sometimes AT&T changes card configuration so it is necessary once in a while. Otherwise, it's up to you.