https://devzone.nordicsemi.com/f/nordic-q-a/75268/can-not-dfu-after-merge-bootloader-setting-bootloader-and-applicationHi, I wanna my appication run first instead of bootloader. Here is my steps: Create bootloader_setting: nrfutil settings generate --family NRF51 --application application.hex --application-version 1 --bootloader-version 1 --bl-settings-version 1 bootloader_settingen-USTelligent Community 13Wed, 26 May 2021 10:02:29 GMThttps://devzone.nordicsemi.com/thread/311713?ContentTypeID=1Wed, 26 May 2021 10:02:29 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a1cd97aa-a0c0-4dbf-bea9-0d9ae9425e01Vidar Berg<p>I assume you got a WD reset because it was not reloaded in time. Where and when are you feeding the timer, and what was the timeout set to?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/311657?ContentTypeID=1Wed, 26 May 2021 07:32:56 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0088cfac-9da8-4632-94c4-f31e9f922068nguyen huy<p>hi, after checking agian my application. I found that i am using WDT and if i increase WDT reload value, the application works fine. But i don not understand, can you help me explain?&nbsp;</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/310825?ContentTypeID=1Thu, 20 May 2021 15:09:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8f0f61f3-98d5-4d8a-afb5-aaeae373bb3bnguyen huy<p>oh, it seems that my application has some problems, i will check it again&nbsp;</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/310747?ContentTypeID=1Thu, 20 May 2021 12:29:00 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1bcb1eb4-b05c-41ba-b36f-9774bd901080Vidar Berg<p>Ok, thanks. So that indicates that something must be missing in your Buttonless DFU integration. Are you able to share your project here so I can take a look at it?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/310533?ContentTypeID=1Wed, 19 May 2021 15:25:36 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e529ec5f-719a-4300-841e-b720eaeea044nguyen huy<p>Yes, i tried this example and was successful.&nbsp; &nbsp;</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/310460?ContentTypeID=1Wed, 19 May 2021 12:59:38 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9739fcf0-8607-4bd4-a33d-a75226d2e185Vidar Berg<p>Hello,</p> <p>It looks like the device is failing to enter DFU mode from the application. Have you tried the same with the <span><a title="Experimental: Buttonless DFU Template Application" href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v12.3.0/ble_sdk_app_buttonless_dfu.html?cp=7_5_9_4_3_2">Experimental: Buttonless DFU Template Application</a></span> to see if it works then?</p><div style="clear:both;"></div>