Hi, I have an iPhone 4S with AT&T that I purchased in October. I plan on going to South Korea to study abroad from late June to late September (3 months) and figured it might cost the same to cancel the contract via the early termination fee as paying for 3 months without reaping the benefits (because I won't be here). My question is this: Once I cancel the contract and pay the early termination fee, will AT&T unlock my phone to be used in Korea? I'm leaving in a week or so. How many days in advance should I cancel my phone in order to get it unlocked? Thanks in advance for helpful comments!