Samsung GT-P3110 Quick Start Manual page 9

2. Plug the USB power adapter into a power outlet.
If the device receives an unstable power supply
while charging, the touch screen may not function.
If this happens, unplug the USB cable from the
device.
3. When the battery is fully charged, first unplug the
USB cable from the device, and then unplug the USB
power adapter from the electrical socket.
To save energy, unplug the USB power adapter
when not in use. The USB power adapter does not
have a power switch, so you must unplug the USB
power adapter from the electrical socket when not
in use to avoid wasting power. The device should
remain close to the electrical socket while charging.
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