I will be traveling overseas soon, and wanted to be able to try either a different carrier OR a local SIM card (which I guess would also be a different carrier).
Are different types of unlocking needed for each of these options? And how do I tell if my phone is locked or not? YouTube videos suggest I should be able to search for networks, but the menu item isn't popping up.
I bought the phone from Ting, and I keep running across statements that you don't lock your phones--could it have been locked by Sprint before I bought it?