https://devzone.nordicsemi.com/f/nordic-q-a/97505/bootloaderMy other problem is how to enter the bootloader through key detection in the app?I can implement key detection in the appen-USTelligent Community 13Mon, 13 Mar 2023 01:08:44 GMThttps://devzone.nordicsemi.com/thread/414794?ContentTypeID=1Mon, 13 Mar 2023 01:08:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:538a2575-693c-4bcf-9f69-8ad32d018a58lihangneng<p>Thank you for your reply. I will already use it</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/414708?ContentTypeID=1Fri, 10 Mar 2023 15:37:34 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8787c6e6-4426-40ec-858a-e1a06d31e209Amanda Hsieh<p>Are you using nRF5SDK? If so, see&nbsp;<a title="DFU mode" href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.1.0/lib_bootloader.html?cp=9_1_3_5_0_2#lib_bootloader_dfu_mode">DFU mode</a>.&nbsp;The nRF5 bootloader examples enter DFU mode on button press.&nbsp;</p> <p>-Amanda H.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/414507?ContentTypeID=1Fri, 10 Mar 2023 01:04:06 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2bfd2bcb-50b1-44b1-b28d-7d1ee58ecd9alihangneng<p>Thank you for your reply. I want to implement the application of two apps, which needs the help of bootloader.DFU function. I have already implemented it. I am not sure how it enters bootloader. What are the specific steps? Maybe these can help me</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/414423?ContentTypeID=1Thu, 09 Mar 2023 14:56:00 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6ef30072-ab79-4d3a-bcef-19d701331565Amanda Hsieh<p>Hi,&nbsp;</p> <p>Unfortunately, we don&#39;t have the feature you require.&nbsp;</p> <p>Are you going to update the firmware after entering the bootloader?</p> <p><span>-Amanda H.</span></p><div style="clear:both;"></div>