ScanCallback.onScanFailed errorCode = 2 · Issue #73 · NordicSemiconductor/Android-Scanner-Compat-Library · GitHub
Android-Scanner-Compat-Library/BluetoothLeScannerImplLollipop.java at master · NordicSemiconductor/Android-Scanner-Compat-Library · GitHub
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How To Use Android BLE to Communicate with Bluetooth Devices - An Overview & Code examples | by Shahar Avigezer | Medium
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