I have a few questions regarding unlocking phones.
1) How do carriers prevent people from changing networks?(I would prefer an in-depth, even technical explanation)
2) Will installing a new operating system(particularly on the HTC HD2) result in an unlock cellphone?
3) I've heard of "Unlocking" codes, do they work and if so is there a free way of getting a generator?
I apologize in advance for my ignorance.