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1. Connect your phone with the device to be charged using an
OTG cable.
2. After connecting, a reminder box will pop up indicating that
your phone can charge the other phone and that the battery will
reduce quickly during the charging.
3. Swipe down from the status bar to open the notification panel;
touch Charging connected device via USB, and then check that
Supply power is selected by default.
1.2.4 Powering on your phone
Hold down the Power key until the phone powers on, unlock your
phone (Swipe, PIN, Password, Pattern, Fingerprint or Face) if
necessary and confirm. The Home screen is displayed.
If you do not know your PIN code or forget it, contact your network
operator. Be sure to keep your PIN code secure.
1.2.5 Powering off your phone
Press and hold the Power key until options appear, then select
Power off.
1.3 Home screen
You can bring all the items (applications, shortcuts, folders and
widgets) you love or use most frequently to your Home screen for
quick access. Touch the Home key to switch to the Home screen.