How to changes country code
I'm in South Africa and recently found a smartphone Galaxy S8 that is branded by Xfinity Mobile, since I no way of finding the real owner of this phone I decided to use after searching for a very long time.
I tried using it but the problem is that the phone requires ‘Network Unlock Code’, now how do I pass from this stage and use the phone on networks that are available here in South Africa?
1.1千 
893 
2.3千 