SCAN_FAILED_FEATURE_UNSUPPORTED. Added in API level 21. int SCAN_FAILED_FEATURE_UNSUPPORTED. Fails to start power optimized scan as this .Added in API level 18. void onReadRemoteRssi (BluetoothGatt gatt, int rssi, int status). Callback reporting the RSSI for a remote device connection. This callback .Added in API level 21. Summary: Inherited Constants | Fields | Ctors java.lang.Object. ↳, android.bluetooth.le.ScanResult. ScanResult for Bluetooth.An application should only request high priority connection paramters to transfer large amounts of data over LE quickly. Once the transfer is complete, the .This class provides methods to perform scan related operations for Bluetooth LE devices. An application can scan for a particular type of Bluetooth LE devices .