The Mastercode will not unlock your door. It is an added security feature that is used to set up all functions.
The default Mastercode is 0-0-0-0. It is recommended that you change it to a code of your own. 1. Make sure the lock is unlocked and the door is open. 2. Enter your Mastercode - for new install, default is 0-0-0-0. 3. Press the lock button. You will hear one beep. 4. Press 7. 5. Press the lock button. You will hear one beep. 6. Enter a new Mastercode. It must be between 4 and 10 digits. 7. Press the lock button. You will hear two beeps if successful. If you hear three beeps, it was unsuccessful. Repeat from step 1 slowly.