https://devzone.nordicsemi.com/f/nordic-q-a/79723/ble-otaExcuse me What are the data packet interactions during the ble OTA?Is there a detailed flow chart？en-USTelligent Community 13Fri, 17 Sep 2021 11:51:12 GMThttps://devzone.nordicsemi.com/thread/330019?ContentTypeID=1Fri, 17 Sep 2021 11:51:12 GMT137ad170-7792-4731-bb38-c0d22fbe4515:bb98f567-c4ba-4973-8d6d-1b0a2e74310dVidar Berg<p>Hello,</p> <p>Yes, you can find detailed message sequence charts for the DFU process here in the SDK documentation: <span><a title="DFU protocol" href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.1.0/lib_dfu_transport.html?cp=8_1_3_5_2">DFU protocol</a></span></p> <p>Best regards,</p> <p>Vidar</p><div style="clear:both;"></div>