Sony SGPT21 Series Help Manual page 7

Shutting Down Your Tablet Device
Note
Before shutting down your tablet device, see
1. Press and hold the power button until a list appears.
2. Tap [OK].
The tablet device will automatically turn off in a few seconds.
Note
To avoid losing unsaved data or causing your tablet device to malfunction, be sure to shut down your tablet
device properly as described above.
If you cannot shut down your tablet device as described above, press and hold the power button for about 10
seconds to force it to shut down.
Related Topic
Turning On Your Tablet Device
Turning On/Off the Screen
Notes on Using the AC Adapter
Charging the Battery
Notes on Using the Battery
Installing/Removing a Battery Pack
Saving the Battery Consumption
"Notes on Using the AC Adapter" [Details].