This is a pretty stupid question but, is the SPH-a303 Heat (Helio) an att phone?
I don't think its an unlocked phone so I just wanted to know if it works for att?
Everyone phone in the world can be used on at&t and tmobile as long as the phone is GSM/uses a sim card. So if the Helio Heat excepts sim cards it can be unlocked and used on at&t.