https://devzone.nordicsemi.com/f/nordic-q-a/35781/reduce-dfu-watch-dog-timeout-in-secure-bootloader-in-sdk15-0-0Hi, When debugging with sdk_15.0.0 ble_app_butonless_dfu project(application project) + secure bootloader project(bootloader project),it will cost about 2~3 minutes for system restart if the dfu fails.If I want to reduce the time consuption when dfuen-USTelligent Community 13Wed, 27 Jun 2018 05:36:06 GMThttps://devzone.nordicsemi.com/thread/137781?ContentTypeID=1Wed, 27 Jun 2018 05:36:06 GMT137ad170-7792-4731-bb38-c0d22fbe4515:512f9c38-a4e6-4cf6-9a6f-449996c9a76ealivexiaoluo<p>Hi,Edvin.</p> <p class="p1">I changed NRF_BL_DFU_INACTIVITY_TIMEOUT_MS = 120000 to&nbsp;<span>NRF_BL_DFU_INACTIVITY_TIMEOUT_MS = 30000&nbsp;</span>in sdk_config.h in secure bootloader project.System will restart after about 30 seconds when DFU fails.Thank you!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/137776?ContentTypeID=1Wed, 27 Jun 2018 03:05:29 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3afef641-0cd4-4dc4-ad61-106a02df0900alivexiaoluo<p>Hi,Edvin.</p> <p>when doing DFU update, if user kill the application on the mobile ,so the DFU process will fail.Then it will take about 2~3 minutes for the system restart(nRF timeout? which function will be called?).I want to know if the time 2~3 minutes can be reduce to about 30 seconds? Thank you very much!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/137730?ContentTypeID=1Tue, 26 Jun 2018 15:17:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5f9267a1-7713-4ae9-9504-4e9d2cb4fc7eEdvin<p>Can you describe what that takes 2-3 minutes? Are you doing a DFU update, which fails, and then it takes 2-3 minutes before the nRF times out? Or is it the application that hangs?</p> <p>&nbsp;</p> <p>BR,</p> <p>Edvin</p><div style="clear:both;"></div>