If you can't unlock by the outside handle after UL1 light Green, please check the below troubleshooting.

Step 1. Make sure the door's thickness between 1-5/16'' to 2''.

Step 2. Make sure you have installed the spring in the hole of inside handle.

Step 3. After UL1 light Green, you should hear a bit of sound from the lock.

Step 4. If the inside handle can't unlocked, it may be the problem with the Latch part.