Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Sprint will unlock your iPhone for free if your account has been in good standing for at least 90 days.

I bought the iPhone on eBay and I'm from Brazil, only realized that is quiet difficult to unlock Sprint (specially compared to AT&T) afterwords... So if anyone does now a way to IMEI unlock Sprint iPhone 5 please let me know! Thanks a lot.
 
any cheap site to unlock iphone locked to Vodafone UK?
Found several asking for 50$
 
I bought the iPhone on eBay and I'm from Brazil, only realized that is quiet difficult to unlock Sprint (specially compared to AT&T) afterwords... So if anyone does now a way to IMEI unlock Sprint iPhone 5 please let me know! Thanks a lot.

eBay would have IMEI unlocks for Sprint, but they're fairly expensive.
 
They want a proof of purchase :(

T-Mobile wanted proof of purchase and when I said I bought it off eBay they said I would have to get it unlocked at a market. When I explained that was not possible (this was before grey market unlocks were available) eventually they agreed and unlocked it for me - it cost £20 which wasn't bad.
 
any goof unlocker for UK 02 and EE

Anyone used trustworthy IMEI unlocking site for UK 02 and UK EE iPhone 4
thanks
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.