To turn the handset on, press the Power key.
Note: There may be a short delay before the handset powers on. If the handset does not power on, press and hold the Power key for a full second.
When the handset starts up, swipe the lock ring up to unlock.
The handset is now on and ready to use.
To turn the handset off, press and hold the Power key until the Power options menu appears.
Tap Power off.
The handset will turn off.