CipherLab RK25WO Reference Manual page 107

Using RK25WO Mobile Computer
Press Function key twice, and the keypad will enter Fn Lock Mode (Function Lock Mode)
with an icon appears in the status bar. The keypad stays in Function Lock Mode till
the Function key is pressed again.
Press
Function Key
twice
In Function Lock Mode, you can still enable and if it is needed.
Alpha mode Shift mode
Please refer to for details.
Key Functions in Different Modes
105