I also experienced the same thing with my tv here in the Maldives. In order to resolve it you have to do the following:
Reset the Smarthub
When the tv start after the reset click set up tv . It will go to the terms and conditions. Before you agree to the terms and conditions press mute, volume up, channel up and mute again. A list of all the countries will appear. select the country you wish to locate your tv, and press okay and then agree to terms and conditions and continue. You will be able to log into your Samsung account and down load and install apps. I selected US and now the Smarthub I get is the US hub.
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