User's Manual

PM451 Android 9.0 User Manual
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Using the Keypad
Key Description
Space
Space function
Backspace
Backspace function
Numeric
The numeric keys 0 to 9.
(or Function keys F1 to F23 with Fn / SHIFT / CTRL keys)
SHIFT (Yellow)
Press once
- Activate Shift combination input mode. The icon
appears on status bar. Ex)
Press twice
- Lock the Shift combination input mode. The icon
appears on status bar. Ex)
Press three times
- Back to default input mode
Fn (Blue)
Press once
- Activate Functions input mode (Shown on the keypad in
Blue). The icon appears on status bar
Press twice
- Lock the Functions input mode. The icon appears on
status bar
Press three times
- Back to default input mode
Enter
Enter function
Period / Decimal Point
Input a period or a decimal point