https://devzone.nordicsemi.com/f/nordic-q-a/14403/how-do-you-voluntarily-switch-between-ble-nus-dfu-serviceMy question is while the application is running, how can I disable the NUS service to turn on the DFU service. This idea stems from this question: devzone.nordicsemi.com/.../ The accepted answer involves switching between the two services but thereen-USTelligent Community 13Fri, 10 Jun 2016 14:33:15 GMThttps://devzone.nordicsemi.com/thread/55008?ContentTypeID=1Fri, 10 Jun 2016 14:33:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:bcb3e03c-467b-4299-9e56-fca5b42f8587wknight92<p>You may have to increase your IRAM size (default 0x6100) to get your application to function.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/55007?ContentTypeID=1Fri, 10 Jun 2016 14:30:46 GMT137ad170-7792-4731-bb38-c0d22fbe4515:462fe189-10b4-4fdf-b2ec-54bf0bcb47c5wknight92<p>As it turns out, you can have both NUS and DFU services (two 128-bit UUID services) working simultaneously if you set [softdevice_handler.c line 388]<code>p_ble_enable_params-&gt;common_enable_params.vs_uuid_count = 2</code>. Solution was found by this answer: <a href="https://devzone.nordicsemi.com/question/64138/device-reset-when-calling-sd_ble_uuid_vs_add-second-time/">devzone.nordicsemi.com/.../</a></p><div style="clear:both;"></div>