Let me start from the beginning. I purchased my HTC f phone from a friend who had it on contract with at&t she didn't like it so sold it to me. I am with straight talk so I took it in and the converted it to their system. I'm afraid I am not getting the full use of this phone. Also I have seen where if something is not converted I will not be able to use it later on. Please help me get the full use of this phone and still be able to use it later on. Thanks in advance.