IoTPass LTE APP
Only registered customers can enter by communicating with the IOT PASS device installed in the apartment using the smartphone's Bluetooth signal.
*Set required permissions*
App Settings > Permissions > Location > “Always Allow”
Stop Battery Optimization > Allow
Bluetooth > ON
For usage inquiries, add KakaoTalk channel
KakaoTalk Channel Search: IoTPass
http://pf.kakao.com/_NyRMK