https://devzone.nordicsemi.com/f/nordic-q-a/20852/nrf51422-advertising-but-not-able-to-get-data-on-appHI, We have made application to get data on UART From MCU and transfer it to mobile app. But when we open the app only device get connected. we are not able to get any data on it. We have modify the BLE_APP_UART from example.en-USTelligent Community 13Tue, 28 Mar 2017 12:39:53 GMThttps://devzone.nordicsemi.com/thread/81429?ContentTypeID=1Tue, 28 Mar 2017 12:39:53 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fd3047de-c1fc-4eb1-aa59-adcbc5dc4801Hung Bui<p>Which app did you test ? Have you tried to test nRFToolbox/or nRFUART app with the default ble_app_uart ?</p> <p>Note that to be able to receive notification from the board to the phone, you need to enable notification first.</p><div style="clear:both;"></div>