SHP-DP609
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      SHP-DP609 - How to enable/disable the double authentication mode

      1. Unlock and open the door
      2. Take the battery cover off
      3. Press the [REG] button once to start the registration
      4. Enter the Security (home symbol) button on the key pad
      5. Enter 3 + *
      6. Enter 1 + * to enable double authentication mode
        Enter 3 + * to disable double authentication mode