Shut down your device
- Press and hold the power button.
- Open the system menu and tap Power.
- Tap Shut Down.
Shutting down turns off the screen and all wireless services. Do this when you won't use your device for a long time.
To turn your device back on, press and hold the power button until the screen lights up.
To put away the menu without shutting down, tap Cancel.
Checked against the LuneOS code and installed apps. Nobody has tried these steps by hand yet, so tell us if something differs.