My hisense android phone keeps popping up ads once am connected to internet. I tried custom rom but its loads halfway then say install aborted. What do I do and what may be the problem? I tried factory reset more than ten times but it doesn’t solve the problem of pop ups when am connected to the internet. It seems the virus is in the O.S itself. So I tried custom rom after I rooted my phone but now it can’t install...please help :( :(.