To unlock a Nokia 5310 from T-Mobile it is completely free and only takes a few steps. Your Nokia 5310 will first need an unlock code. As stated in this article, you can get yourself a free unlock code by calling the T-Mobile support line at 1-800-866-2453. In exchange for the unlock code, they will request your Nokia 5310′s IMEI number, which you can find by typing *#06# and hitting enter. Unfortunately, many of the Nokia unlock code generators do not have codes supporting the Nokia 5310, so you are probably best off calling the T-Mobile. Once you have your free unlock code for your Nokia 5310 you can begin the unlocking process. Here are the steps to unlock your phone for free:
