Samsung Galaxy S7 is now worldwide available and customers across the world are using the device right now. What concerns a lot of users is a strange black sticker on the box of the device, saying "EUROPEAN SIM CARD ONLY". 

It means you phone is region-locked, but it is only temporary. It takes five minutes of call time to turn these restrictions off. 

This way of protection is used by Samsung for a long time and it is not a new thing.