I downloaded viber recently. (I remember using viber earlier but with different device.) Now, as i open viber and insert my country name and mobile number, it says some activation code will be sent to my mobile and then when i press yes, it says "Activation Failed" Tap help to learn how to activate account. And, in help section none of it matches my expectation. Watching all these, I have come to a conclusion that "Viber is USER UNFRIENDLY"