How to turn off your Galaxy Note 10 or Note 10+
#1. Quick Panel menu
There's a new power menu shortcut available in the quick panel, right next to the settings shortcut cog. This is where you can access the Power off, Restart, and Emergency mode buttons.

#2. Customize the Side key
You can customize the Side key of your Note 10 or Note 10+ to act as a power button when you press and hold it. To do so, either open your main settings menu and search for "Side key", where you'd see the all-new customization menu right below.
You can choose between accessing Bixby or turning off your device when you press and hold the Side key. Have in mind that a regular press of the Side key will always wake or put the Note 10 to sleep. Additionally, you can choose what happens when you double-press the Side key - either quick launch the camera, open Bixby, or launch a specific third-party app.
#3. Side and volume down
You can also press and hold the Side key and Volume down together to access the power menu straightaway.

#4. Ask Bixby
Finally, you can simply ask Bixby to turn off your phone if you don't feel like going through all the hassle.
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