One of the first questions I am often asked about Android OS Smartphones and Tablets is: How do you shutdown or power “off” the device (smartphone or tablet)?
Many folks will often tap the power button thinking they are turning the device “off”, when in fact they are only putting the device in a standby mode only. To really power “off” the device you need to hold down the power button until you see an option to power the device down (varies slightly from device to device, but the process is very similar). Select the “power off” option and the device will shut completely down. To power the device back “on”, hold in on the power button until you see the screen light up (typically with the phone or tablet’s logo).
A good practice to follow is to turn the device completely “off” on occasions. I typically will power my smartphone (off) and back (on) at least once or twice a month. You will find this helps refresh the memory cache and the device will actually run a bit faster.