I have an Alcatel A450-TL (which from what i can tell is also called a Pixi Charm, but this is another story) Anyway, i have been trying to use my AT&t sim card with it with no success. I rooted the phone with Kingroot, that didnt work, I also a have an unlock code for this phone. What is confusing to me is that I do not have an option of where to put the sim unlock code in. Everything I have seen has been of a prompt coming up and giving you the option to enter a code, mine does not have this. Can someone please tell me where in gods name i put this thing in?