Using the old master code open the safe door. Keep the door open while changing the combination so you can make sure your new combination works before closing and locking the safe.
Begin by pressing SG*, which is the same as 74*, on your Liberty safe's electronic keypad.
Immediately after pressing "SG*" enter the six digit master code for your safe, followed by the pound sign.
Listen for the lock to electronically chirp five times. If you entered SG* and your master code correctly, you will five chirps in successions. If you entered incorrectly the lock will return an almost continuous tone, letting you know you have to repeat steps 1 and 2.
Press 1, then * and then enter your desired new six digit master code, followed the pound sign.
Listen for three electronic chirps, which signal a proper entry of a new master code. If you hear a continuous tone, you have made a mistake, you must start over again with Step 1.
Enter your new master code again after hearing three chirps, and follow that pressing the # key.
Listen for three more electronic chirps, signaling you have successfully changed your master code on your Liberty safe.
Try the new combination before closing the safe to verify that it works.