Any user of the iPhone 6S would like to have the freedom of choosing a mobile phone operator of her choice. But if your phone is locked, it means you are tied to a single mobile operator, whether you like their services or not.
The a monopolistic nature of the tie-up gives an unfair advantage to the mobile operator and allows them to act with high handedness every once in a while. This problem can be overcome by unlocking your iPhone 6S that does away with the need to depend on any single mobile operator. An unlocked iPhone 6S gives you the freedom of choosing a mobile operator of your choice.
The software unlocking method does not work for iPhone 6S and hardware unlocking is a risky method that should be avoided. Instead, IMEI unlocking, which is a reliable and effective iPhone 6S unlocking method should be used.
All mobile phones have a unique identification number known as IMEI number. By accessing the IMEI database, change the locking status of the phone from locked to unlocked and you free to avail the services on any mobile operator that you like.