https://devzone.nordicsemi.com/f/nordic-q-a/127607/fota-over-bluetooth-low-energynRF54L15 SDK:v3.1.0 Hello, I have implemented the FOTA function according to the official documentation. Now, I would like to add a switch for enabling and disabling FOTA. Our product is used in automobiles. When the car engine is started, FOTA is prohibiteden-USTelligent Community 13Fri, 27 Mar 2026 13:34:13 GMThttps://devzone.nordicsemi.com/thread/564192?ContentTypeID=1Fri, 27 Mar 2026 13:34:13 GMT137ad170-7792-4731-bb38-c0d22fbe4515:71d315fd-7ead-4bc0-b8ae-49658c82c882Menon<p>Hello,</p> <div> <div> <div> <div dir="auto"> <div> <div> <p>BLE DFU/FOTA uses the MCUmgr SMP Bluetooth transport. A common way to enable or disable it at runtime is by dynamically registering or unregistering the SMP Bluetooth GATT service.</p> <p>You can enable it using <code>smp_bt_register()</code> and disable it with <code>smp_bt_unregister()</code>. To support this, make sure <a href="https://devzone.nordicsemi.com/support-private/support/358635/CONFIG_MCUMGR_TRANSPORT_BT_DYNAMIC_SVC_REGISTRATION">CONFIG_MCUMGR_TRANSPORT_BT_DYNAMIC_SVC_REGISTRATION</a><code>=y</code> is enabled in your configuration. <a href="https://docs.zephyrproject.org/latest/doxygen/html/smp__bt_8h.html">See the smp_bt.h</a></p> <p>Kind Regards,</p> <p>Abhijith</p> </div> </div> </div> </div> </div> </div><div style="clear:both;"></div>