OK DIGITAL LF21-PL, User Manual

LF21-PL

User Guide

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master code

new user code

Changed

new user code(4-12 digits)

Changed

master code

new user code(4-12 digits)

Changed

Change the user code with master code (private mode)

Press “*” → enter the master code → press “*” → enter new user code.
Press “#” before and after the user code if it is 5 or more digits.  

(Using imaginary number)
Press “*” → enter any imaginary number → enter the master code → press “*” 
→ enter new user code → press “#”.

master code

imaginary number

Change the user code with user code (public mode & private mode)

Cannot use imaginary number when enter the new user code.

current user code

new user code(4-12 digits)

Changed

Press “#” for 4 seconds → enter current user code → press “#” → enter new user code
→ press “#”.  

4 seconds

new user code(4-12 digits)

Changed

(Using imaginary number)
Press “#” for 4 seconds → enter any imaginary number → enter current user code  
→ press “#” → enter new user code.

current user code

imaginary number

4 seconds

Change User Code

The user code can be changed if it is unlocked. Need to unlock it with the master code 
first if it is locked . (refer to “Using Master Code” on page 10)