User's Manual

Getting Started
18
To put the device in sleep mode:
• Press the Power button once for less than 1 second.
To return from sleep mode:
• Press the Power button again for less than 1 second.
Calibrating the Touchscreen
Calibration ensures that the correct screen items are activated when
tapped. The first time you power on the H-21, the system will ask you to
calibrate the touchscreen. Tap the center of the cross using the stylus until the
calibration is complete.
To recalibrate the screen at any time:
1. Tap Start > Settings > System > Screen > Alignment.
2. Tap the Align Screen button and follow the on screen instructions.
3. Tap OK to save and exit.
Locking/Unlocking the H-21
Locking protects the screen from accidental key presses.
To lock/unlock the keyboard and touchscreen:
1. Tap Start > Lock.