Sprint (or anyone else) can no longer afford to make a phone that is impossible for use to unlock because of Entsperrungsverpflichtung, which comes into force soon, initially with another carrier would make for international use, but the device must be An active Sprint account in order and has been in this state for at least 90 days. The print encouraged the owners of such devices largely to consider Sprint Buyback Program that could allow them to swap their old equipment to get a credit in the store to buy a new device or to get an account. Credit from my iPhone 5S with Tapatalk -20-2013 08:46 Likes 0 2,714 SwitchBeach Posted by EmceeGeek Thank you for explaining what I said originally. That is, CTIA has just developed this policy in practice after the government has signaled that if they do not, at some point in the future the law would be passed to force them. Sprint just does not choose to unlock because they try to force customers to stay with them by preventing them from using their own property with another vehicle. Upgrade after 12 payments, as long as leasing and early upgrade are offered. Beg. active line up to upgrade time with min. Amazon Phones For Sale Unlocked. 12 consecutive monthly service plan payments, new phone lease, acct. Instructions for entering unlock code: Turn on your iPhone with a foreign SIM card The phone comes in for you to enter the Sim Network Unlock Pin or Enter Unlock Code You unlocked the code provided that your iPhone phone is now unlocked. Good luck and let us know what happening or if you have questions. (By the way, if you are looking for a sprint forum, there is a report from someone who uses their iPhone 5 on T-Mobile - but the vast majority will tell you that it simply can not be done). Samsung Galaxy S3 I9300 Unlocked Cell Phone. With the exception of Verizon, which does not lock its 4G phones, most carriers, including Sprint, lock the phone into the network, forcing them to use their iPhone only on the network.