[paolo]

how is that a solution? new phones from your carrier are often locked to their respective provider, unless you buy it full price from apple, you can request an unlocked version, this will be factory unlocked, u can do the software updates on it properly and not having to worry about the dreaded problem where the phone gets bricked and corrupted and needs to be re-stored via itunes.

I have noticed some unlockers who offer white list unlocking for a very good price, its basically adds your imei to the apple white list in itunes and your phone is factory unlocked, no more need for Cydia or Jail break solutions, or bricking your phone again.