hold your volume button and power button (make sure your headset is off) and use the volume - button to scroll down to factory reset. press power button to confirm. confirm it again. select "Reboot system now" and you will have to fully set up your headset (includes meta app). but if you use your meta app you will have the same account but since it wipes the data any apk or unknown sources u have will be gone (including the virus). hope this helped! :)