If the sequence is keyed in correctly, you should hear a long beep (about 1.5 secs). If you do not hear this, you may wish to try keying in the sequence again.

Do note that when you first touch the lock to ‘wake’ it up, do not press any numbers in particular as this would interfere with the sequence.

If you accidentally press a digit, press '#' to clear the keypad and then proceed key in the sequence from the top.