Appearance and buttons – HKC P778A User Manual
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1. Appearance and Buttons
Power Jack 
Microphone
MIC
Mini HDMI
Mic USB 
Reset 
Micro TF card Jack
Power on/off
Volume +
Volume -
Camera
Return
Home
Menu
1.1 Touch panel
7” Capacitive touch panel: In the Operation, to click and drag on the touch panel
1.2 POWER
Startup: Press and hold the power button, the system will enter the main interface.
Shutdown: In the main menu interface, Press the power button for about 5 
seconds to shutdown, The system can hint "power off" option, Click ”ok”. Then you 
can safely shut down.
Lock Screen: Short press power button to lock screen or unlock screen.
Note: When power is depleted, system tablet will shut down automatically. 
1.3 ESC
Press ESC button will return the last interface; Long Press ESC button will return 
the main interface.
1,4 Menu
Short press Menu button will take you back to the home screen
