I have an iPhone 4S that came in mail today. I had applied for unlock and the phone is unlocked now as per the IMEI checkers and the seller. Now i wish to get the unlock applied to the phone and i do not wish to restore it. What i plan to do is to insert a tmobile SIM and connect phone to iTunes and expect Congrats message. But in the event the message does not come or i feel the unlock on device has not yet happened, what method i should use to get the message ? One method i got is from the following link... Here's How To Unlock Your AT&T iPhone Without Losing Jailbreak | Redmond Pie This method uses Redsn0w to deactivate the phone and then activate using iTunes. Another method i found is from the following link.. http://modmyi.com/forums/unlocking-...ct-iphones-3g-3gs-4-4s-without-restoring.html This involves jailbreaking the phone (if not already JBken) and install SAM to deactivate the phone and then activate using iTunes. Which method is preferable ? Or there is no difference and i can use any of these ?