Help guys please. I got an O+ phone and It basically have many virus or malware on it. I can't stop it and it installed me an app called "vpn" (No caps and quotes.) which can't be deleted. Like the system apps that can't be deleted! When I try to delete it, it just shows app info without the uninstall button! It's also annoying because it spams me "Unfortunately, vpn has stopped". So then I looked on [settings > apps > downloaded] if it's there but it isn't! It also installs an app called "android wifi service". It can be deleted but it re-downloads again. Sometimes I also get a porn link on my home screen. (IDK if it's a porn link because there's no name like that on menu.) These viruses or malwares make my phone ALMOST uncontrollable! My phone is not rooted so I can't delete the vpn app. They also auto-download other apks so that I can install them and sometimes they force to install the apks they download without even installing them by me. If you need more information just ask me because I turned off my phone so that it can't auto-download apks or etc. Sorry if my english is a bit bad. Anyways thanks.