SHP-DH537 - How to delete a user PIN code

1. Unlock and open the door
2. Take the battery cover off
3. Press the [REG] button to start registration : Ding dong
4. Enter the master pin code + *
   • Success : Ding Dong Deng, Ding ding
   • Failed : Dingdongdingdong (If it’s wrong)
5. Enter 1 + *
6. Enter 2 + *
7. Enter a user pin code to be deleted + *
   • Success : Ding Dong Deng
   • Failed : Dingdongdingdong (if it’s not registered or less than 4 digits)
8. Repeat from step 7 if deleting other user pin codes OR press [REG] button to end deletion

To delete all user pin codes, enter 3 + * after step 5.