Why is my Dermum E Smart Lock doing the opposite?


Why is my lock is working backwards? Why does it unlock when I touch the keypad once? my locked and unlocked function reversed on my phone.


The reason for the backwards operation of deadbolt is in the installation. Please re-install the deadbolt to solve the issue. During re-installation, please pay careful attention to this video

Pay attention to the following: 

  1. Calibration Switch for left facing bolt or right facing bolt. 
  2. Door Knob position for left facing bolt or right facing bolt. 

Please put the calibration switch and door knob to the correct position when you reinstall the lock. Please let us know if this helps. Thanks !


right facing bolt = R


What to know about the calibration switch:

  • The calibration switch is used to adjust for right and left handed doors.
  • When you press and hold the lock symbol on the lock, the deadbolt should extend and lock the door.