SHS-H505 - How to delete a key tag or user PIN code

1. Unlock and open the door
2. Take the battery cover off
3. Press and hold the [REG] button for 3 seconds : Ding dong -> Dingding
4. Enter the master pin code + *
   • Success : Ding Dong Deng, Ding ding
   • Failed : Dingdongdingdong (If it’s wrong)
5. Enter a user number to delete (1-30) + *
   • Success : Ding Dong Deng, Ding ding
   • Failed : Dingdongdingdong (If it’s wrong)
   • To delete ALL users, enter 88 + *