We have just published a free guide to unlocking mobile phones.
We noticed that it is very hard to find a comprehensive source of information on this topic that explains all the terminology for normal users—so we decided to create one. In the guide, we introduce different unlocking processes and how they work and explain common technical issues. We also clarify the difference between unlocking and rooting or jailbreaking a phone.
Whether you are unlocking a phone for the first time or have some experience already, take a look at the guide to answer your questions.