I received my siswoo I7 cooper mobile phone. It has android 5. I tried to register the new mobile phone with google but I still have the old mobile phone showing up. In fact when I tried to install a new application it seems that it is installed on the old mobile phone. The problem is that I cannot install anything at all from google play to my new phone. How can I add the new mobile phone to the google account? Normally, I used to put in my username and password and voila'. This time it didn't change anything at all.