I unlocked my wife's HTC One S T-Mobile for Straight Talk. I have added the Straight Talk APN, however I see that it has been added but the T-Mobile MMS & Data APN are showing a locked symbol and it will not let me delete it. She can only receive text & data by using WiFi at home because of that.
XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. Are you a developer?