What is the best way to get an unlocked 5s?
I wanted to take advantage of the limited time offer on apples website of interest free financing, but I need the iPhone 5s to be unlocked.
I thought that the T-Mobile one was unlocked but it just says "contract free" and I've read mixed reports online, some saying that it is really unlocked and some saying that you have to get it unlocked from T-Mobile and that they require you to have service with them for 40 days before they will unlock it.
I would actually prefer an unlocked AT&T iPhone 5s because I'm currently using an unlocked AT&T iPhone 5 on AIOWireless and everything is working perfectly after a simple carrier update (LTE/HSPA+ data / MMS / Visual Voice Mail) and I'm worried that everything might not work properly with the T-Mobile iPhone 5s since AIOWireless is owned by AT&T
So basically I'm wondering if there is any way to buy an unlocked AT&T iPhone 5s without actually signing up for AT&T service, and if not then is the T-Mobile one listed on Apples webpage store listed as "Contract Free" actually unlocked?
I also read somewhere that if you pay full price for any of them at an Apple Store that they will be unlocked, but that doesn't really make sense to me because whether or not you pay full price or buy one under contract wouldn't they be pulling the iPhones from the same stock at the store?