Unlock Iphone 5s Virgin Mobile Uk here. As we know, we need to buy a SIM card from mobile carrier in order to make phone calls. The fact is that each mobile carrier employs different technology for its wireless service. Thus, some of the carries lock the phone to protect the phone from being used with other service providers, which means even you inserted a new SIM card to the phone, it will not work at all.
It happens when we aren't happy with our carriers. But SIM lock restricts our phones to one carrier. So you need to unlock the phone before using other carrier. How To Unlock Iphone 3gs With Itunes.
This will be a very bad thing if you travel to another country. So in such a case, unlocking SIM card is an urgent thing for you. Typically, there are two ways to unlock Android SIM card for now. One is asking the service operator.