Originally Posted by etaiso
I have a Galaxy S5 which is region locked to the Americas. I'm trying to use it in other region, but when inserting non-USA SIM it asks me for a PIN code to unlock.
Samsung region locks to make it difficult to do exactly what you are trying to do. Reliable information on the topic is difficult to come by as it doesn't affect most of us.. hence most of us have little direct experience with region locking. And those affected frequently make assumptions and guesses but seldom study the issue methodically.
Some very knowledgeable people say that a normal SIM unlock will likely remove the region unlock as well. So that may be the best option for many. The question of whether using an Americas SIM, e.g. a prepaid SIM for example outside
of the America's will release the region lock? The question gets raised from time to time but I have yet to see an authorative answer.. so the only thing that we can say is that it would probably
Lastly, one can, with root, directly examine and modify the region lock blacklist. So it is easily circumvented if you root your phone. I can vouch for the later. The other suggestions should work as well, but were not tested myself.