IPhone users can unlock their device using different methods. They can use this guide to know how to unlock iphone 4 for free. First they have to know the firmware they are running first because some basebands are not easy to unlock. Jailbreaking and unlocking the device can also result in issues and void the warranty as well. They may have several options but they have to talk to their current network provider first as they can get help to unlock the device via iTunes. Another option to unlock iPhone 4 is using a third party service provider who offers service for a small fee. They can do search online, provide details about the network currently they are using and find a list of service providers.
It is quite easy for iPhone 4 users to unlock their device for free. Jailbreaking is the process that helps them to unlock apple devices. Jailbreaking means opening up the phone software. This process will use some other software to do unlock. First the users have to check if there is any unlock available for the baseband of iOS version that they are using. They can check their baseband and iOS version by choosing the general option in the settings menu and click on about on option. They can also find video tutorials available online that shows how to unlock iPhone devices. If they find unable to unlock it they can hire the service of a provider to get the process done effectively within a short period.