Connect to BluetoothLE

Hi all,
I bay BluetoothLE module from ali:

This is AT-09 BLE 4.0 Bluetooth module CC2541. First I power up the module to pair with my phone (Xiaomi Redmi Note 7). The phone see bluetooth module but when I klick to pair, popup for PIN code appears for under a seccond then disapire. So I cannot to pair. I update the module firmware and voala... I download extension and skech (BluetoothLE V2 extension and skech for searching BLE devices) but program not showing any devices.... just empti list.IoT_BaseConnect.aia (155.1 KB)