hello just need a help had a iphone 4 running on 4.3.3 on baseband 4.10.01 just did my factory unlocked through at&t.my quation is if update from 4.3.3 to ios 6 does my phone will locked again its a factory unlocked thank you.
It very much depends on whether your iPhone was officially unlocked. Do check with the at&t guys first that the unlock was indeed official. Then you should be able to upgrade without any consequences. Note that if the unlock was not carried officially by at&t there is a chance that you brick your iphone after upgrading to iOS 6 and be getting "no servise/no sim".