Press and hold the "C" button to start programming your lock. Change the user code by using tweezers to manually remove the code (red) and non-code (blue) tumblers. You can program codes from 3-7 digits long. Remove blue tumblers and add red to increase the digits in the code. Remove red tumblers and add blue tumblers to decrease code digits.
Once the new code is programmed, replace the lock plate and test the code. If the code works, then your lock is ready to be installed on the door.