Please help, My galaxy s5 my have a virus, once in a while my phone will have a pop up saying my phone need a upgrade or it has a virus and to click here to fix the problem and I know its fake and it even does it when I unlock my phone and am on the home page. pulled out a dummy phone I haven't used in months and when I unlock the same thing happen with the same pop up. Is the a virus on my phone or my router?