- Press and hold the Volume down and Power button at the same time.
- When the OnePlus logo appears, release the Power button, but continue holding the Volume down button.
- At the Password screen, enter the Password or PIN number that you use to unlock your device. When done, tap Ok.
- Tap English.
- Tap Wipe data and cache.
- Tap Reset everything (Music, pics, etc).
- Tap This can not be undone, continue?
- Tap Reboot to restart your phone.