Originally Posted by jack_ssl
Respected Sir ,
I Am in India .. I Bought AT&T S4 From US ... Then I Unlocked My Phone ... I Didn't Get Update From AT&T .. And I am using The AIRCEL Carrier Network . If I Am Using AT&T Carrier SIM Network In India .. I Will Update From AT&T via OTA ?
You could try but if the AT&T in India uses the different model of GS4, you might not get the OTA. And sometime, they might use the different rom/software for the AT&T India.
AT&T in US use (SGH-I337) model which you have now.
You should ask this question to the AT&T store in India.