SHS-3321 - How to delete a key tag or a user pin code

1. Unlock and open the door
2. Take the battery cover off
3. Press and hold the [REG] button for 5 seconds : Ding dong – (5s) – Ding ding
4. Enter the master pin code + *
   • Success : Ding! Dong!
   • Failed : Ding-dong-ding-dong
5. Enter a user number to delete (1-70) + *
   • Success : Ding dong daeng
   • Failed : Ding-dong-ding-dong (if wrong user number is entered)