Thought you just pop the sim card in and voila.
I don't know how to change the APN settings.
And why should I do that if the device comes unlocked?
Do I miss something?
Surely, my sim card is not damaged.
HTC One M8 Gunmetal grey + HTC One M7 Red Edition
(ViperOne on both).
...and iPhone 3GS ...for breaking nuts.