CipherLab RK25WO Reference Manual page 115

1) Alpha Numeric Mode:
Once you turn on "Change blue key input method", the physical keypad changes to
be numeric keypad immediately. An icon
Alpha Numeric Mode is on.
2) Alpha Lowercase Mode:
In Alpha Numeric Mode, press Alpha Key (the blue key) once, and the physical
keypad will change to be lowercase keypad with an icon
Using RK25WO Mobile Computer
shows up in the status bar to indicate
113
appears in the status bar.