Curtis LT7028 - Manual (Page 9)

9
3 Quick Guide
3.1
Touch Panel Calibration
When there are offset and invalid tap on the touch panel, please
press and hold the “ESC” key for 3 seconds to log into the interface
of the Touch Panel Calibration, tap the center of the “Cross”
indicated by the red circle one time, the screen will display
“Calibration Successful” message when it is OK, see the figures
below
3.2 Switch On/Off
Switch On and Unlock: When the device is in the OFF mode, press
and hold “Power” key for 3 seconds to enter the Android startup
progress bar, it need about 100 seconds enter to the system desktop,
the LCD is under locked mode, please press and pull the
icon to
the green point, then the LCD will unlocked automatically, see the
figures below,
Power Save Modes and lockscreen
: Press the “POWER” key
shortly after starting up, system enter to SLEEP power save and
lockscreen mode. Press the “POWER” key or tap the touch screen
for 3 seconds, system will return to bright in 1 second
Note: The primary operation of the device will not stop under the
power save mode, just the LCD is shut and with black screen. For
example: playing music, movie, etc
Switch OFF: When the device is in the OFF mode, press and hold