I've got 2 iphones, an iphone 4 and an iphone 5. I requested an unlock from ATT a couple of days ago on both of them and they approved both, I waited 24 hours until I tried to backup and restore. For some reason the unlock isn't working. I did a backup in iTunes with them connected thru USB, they have the old ATT Sim's in them which are activated, working and have signal. Then I did a restore from backup as per Apple's instructions. From what I understand upon restore I'm supposed to get some kind of unlock verification on screen? I also cannot access APN settings, which I thought I could once unlocked. Last, I used a T-Mobile activated SIM to verify if it was unlocked and it just gives me a no service error and calls fail when I try them. Any advice, troubleshooting or anything I might be doing wrong?