Hello Androiders. I just bought galaxy samsung s4 zoom from a friend. When i factory reset it, it seems to be okay at first. Then i found this app name pornclub. I wanted to uninstall it but it can't be uninstall. Only can be force stop and disable. I also reset phone for 3 times but it just appear whenever after i reset. Any idea how to clean or reset phone like its newly bought???thanks in advance.