After everything is said and done and you do a hard reset or if you end up getting a new device, I recommend you install Lookout Mobile Security. I believe it is still freeware. It used to be called flexilis mobile security. I have been using it since it was called flexilis . It has a firewall , anti-virus , and backup. I have been using it for almost a year now and I have not noticed any issues with performance and it seems to do what it is supposed to do.
