Go to Setting > App management > App Cloner. The list will
show you the applications that supports App cloner. Tap the
application to open App cloner.
Display over other apps
You can go to Settings > Apps management > Display over other
apps to view and configure supported apps. When you open the
specified application in Display over other apps, the app will
create a picture-in-picture window when you open or leave the
application (such as continue to watch video), which displays on
top of the other apps you are currently using.
* This function needs to be supported by the application itself.
Reboot, Update, Backup, Recovery
Learn to upgrade and reset your OnePlus device
Reboot or force reboot
Most issues can be resolved by rebooting your device in the
following two ways:
1. When powered on, press power button and volume up button
simultaneously, and then tap "Restart" to reboot the device.