Opticon H-16 - Manual (Page 11)

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Chapter . Basic Operations
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2.1 Getting Started
Powering On/Off the Device
Press the POWER button to turn on the device. The POWER button
is located on the top side of the device. When you power on the
device for the first time, you are asked to calibrate the device.
Please refer to the “Calibrating your device” section in this chapter
for calibration steps. Press the POWER button again to switch
the device to sleep mode. You can still receive phone calls and
messages when the device is operating on sleep mode. To power
off the device completely, press and hold the POWER button for 
seconds and the system will prompt you to power off the device.
Calibrating Your Device
Calibrating the device ensures the tapped
item is activated. To calibrate your device,
tap the center of the cross with the stylus
as the cross moves around the screen. If
you would like to re-calibrate the device,
follow the steps below:
1. Tap > Settings > System tab >
Screen.
. Tap the Align Screen button and follow the
on-screen instructions.
Locking/Unlocking the Device
Locking the device turns off keyboard and
touch screen functionality. This is a helpful
feature if, for example, the device is turned
on and in your pocket, and you want to
prevent accidental key presses.
•To lock the device, tap on the icon
on the Today Screen. Once the device is
locked, the left soft key label changes to
Unlock.
To unlock the device, tap the Unlock button on the Today screen first,
a screen as below will show. Press the “Fn” key and * to unlock the
device, or just tap the Unlock button on the screen.
You can still receive calls and make emergency calls when the keypad is locked.