Hope this question hasn't been asked before. I did a search and could not find any results. I recently asked AT&T to unlock my iPhone 4 which is out of contract. I wanted to give the phone to my mom after my new iPhone 5 arrives tomorrow! AT&T told me that the phone qualified for unlock and that I just had to backup and restore my phone through iTunes to get the iPhone 4 unlocked. Now since iOS6 came out yesterday, I went ahead and downloaded it BEFORE unlocking my phone by restoring my phone. Is this going to be a problem affecting the unlock of the phone? hope this question makes sense. Thank you.