https://devzone.nordicsemi.com/f/nordic-q-a/44546/sdk15-dfu-and-watchdog-issueHi, I have developed a custom board with NRF52840. I&#39;m using the Secure BLE DFU bootloader from SDK15, but I have many troubles because my application has WatchDog enabled, and the DFU fails very often. I also tried my application without WatchDog, anden-USTelligent Community 13Fri, 08 Mar 2019 13:48:55 GMThttps://devzone.nordicsemi.com/thread/175036?ContentTypeID=1Fri, 08 Mar 2019 13:48:55 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2485f673-0a9d-4b94-9245-987c540e743babe<p>Hi Sigurd</p> <p>I&#39;m using SDK15.0, the CRV is 2000 (#define NRFX_WDT_CONFIG_RELOAD_VALUE 2000)</p> <p>Here above the source code I have on my application (copied from peripheral example on SDK)</p> <p>#if WDT_DFU_ENABLED<br /> //Configure WDT.<br /> nrf_drv_wdt_config_t config = NRF_DRV_WDT_DEAFULT_CONFIG;<br /> err_code = nrf_drv_wdt_init(&amp;config, wdt_event_handler);<br /> APP_ERROR_CHECK(err_code);<br /> err_code = nrf_drv_wdt_channel_alloc(&amp;m_channel_id);<br /> APP_ERROR_CHECK(err_code);<br /> nrf_drv_wdt_enable(); <br /> #endif</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/175025?ContentTypeID=1Fri, 08 Mar 2019 13:30:26 GMT137ad170-7792-4731-bb38-c0d22fbe4515:77e6ada2-cf05-4671-8d9e-fcfff00530b2Sigurd<p>Hi,</p> <p>Are you using SDK 15.2 ?</p> <p>What watchdog reload value(CRV) are you using ?</p> <p>What is the <a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.ps.v1.1/wdt.html?cp=2_1_0_39_3_6#register.CONFIG">CONFIG </a>register set to ?</p><div style="clear:both;"></div>