In this scenario, the smartphone is generally integrated with a disabling software having a unique locking code. You can either go for Direct SIM Unlock which, as the name suggests, will allow you to run various carrier services either domestically or internationally. If you have purchased a carrier-specific phone such as Sprint-based, then you fall into this category.
In other words, the device is manufactured with programming restrictions allowing the support to only one carrier service. When your smartphone is locked in the sense that it can not run any other carrier service, SIM unlocking procedure comes into the play.
Now what is UICC? And What can be done about it?īefore we jump right into the UICC Unlocking and what it is, we should first take a little look at the unlocking and its types. This time we will be looking at something which is called UICC Unlock. Have you ever get into the Sprint Activation screen where it just keeps loading when you put your SIM in or after you do the factory reset and then the phone locked with somebody else data?