ble_nus_data_send sometimes sends errorshttps://devzone.nordicsemi.com/f/nordic-q-a/62039/ble_nus_data_send-sometimes-sends-errorsI am using SDK16.0(ble_app_uart) program to sending dates between the phone and board.And I noticed that send function (ble_nus_data_send）failed a few times when it didn&#39;t go in. Normal delivery process The wrong sending process sniffer pacen-USTelligent Community 13Tue, 02 Jun 2020 13:23:32 GMTRE: ble_nus_data_send sometimes sends errorshttps://devzone.nordicsemi.com/thread/252765?ContentTypeID=1Tue, 02 Jun 2020 13:23:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8b028403-e30d-4ca3-9a40-cb5aec00bba5Hung Bui<p>Hi Roy,&nbsp;</p> <p>Seems that you created the sniffer trace from a very old Wireshark version, I couldn&#39;t open it using Wireshark v3.2.1&nbsp;</p> <p>Which sniffer firmware did you use ? I would suggest to use our latest sniffer v3.0.0&nbsp;</p> <p>In your screenshots, I can see that you were pointing to Malformed packets, could&nbsp; you tell us the difference ? If it&#39;s a CRC invalid packet, it will just be ignored by the softdevice.&nbsp;</p><div style="clear:both;"></div>