How to change code for S&G Model 6121

Below will be some basic instructions on how to change the User code, Master code, Supervisor code and how to delete a user or supervisor code.  There is only one Master code so it cannot be deleted only changed. You will need the master code with out it you will not be able to change the master code.

The default code from the factory is 123456#

To Change the Master code (code #1)... Must be 6 digits
PRESS: [ 7 ,4] (MASTER CODE)  #  1  *  (NEW MASTER CODE) # (NEW MASTER CODE) #
       
  After the final # is pressed the lock will make three distinct chirps to indicate that the Master code has been accepted. If a long series of closely spaced chirps sounds the new code was not accepted and the old code remains.

To Change The Supervisor code (Code#2)...   Must be 6 digits
PRESS: [ 7 ,4] (MASTER or SUPER code) # 2 * (NEW SUPER CODE) # (NEW SUPER CODE) # 

After the final # is pressed the lock will make three distinct chirps to indicate that the Supervisor code has been accepted. If a long series of closely spaced chirps sounds the new code was not accepted and the old code remains. 

To Change a User code... Must be 6 digits
PRESS: [7,4](MASTER or SUPER code) # (USER I.D. 3 Through 9) * ( New user code) # (New user code) #

To Delete a User or Supervisor code
Press: [7,4] * (code to delete) # (User I.D. 2 Through 9) * # #

After the final # is pressed the lock will make three distinct chirps to indicate that the user code has been deleted. If a long series of closely spaced chirps sounds, the has not been delete.

Click here for service manual