Open the door to the safe, using the existing code, and then place the door in locked mode by turning the safe handle to the locked position.
Press the digits "7" and "4" followed by the "*" key to enter the code-changing mode.
Enter the existing code on the keypad, followed by the "#" key. Listen for a series of five beeps, which indicate that the lock is ready for the combination changing.
Press the digit "1" followed by the "*" key.
Enter the new code, consisting of six digits, and then press the "#" key. Upon pressing the "#" key, the lock will emit three beeps, indicating a successful entry of the new code.
Enter the new code again followed by the "#" key to verify the new six-digit combination. Listen for another three beeps, indicating that the second entry of the new code matches the first entry. The new combination is now ready for use.