https://devzone.nordicsemi.com/f/nordic-q-a/14367/dfu-in-hrm-example-not-100-workingI am using SDK11 on a nRF52 board. I had some success in DFU, but also had issues. Was able to upload the bootloader successfully using Master control panel. But it always fail to upload softdevice or softdevice+bootloader. It would start transmissionen-USTelligent Community 13Wed, 08 Jun 2016 17:08:39 GMThttps://devzone.nordicsemi.com/thread/54856?ContentTypeID=1Wed, 08 Jun 2016 17:08:39 GMT137ad170-7792-4731-bb38-c0d22fbe4515:804af46d-4173-40ab-bba7-525595a39087Rbai<p>No, I did not change any code. Do I need to do something to disable the watchdog?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/54857?ContentTypeID=1Wed, 08 Jun 2016 04:05:10 GMT137ad170-7792-4731-bb38-c0d22fbe4515:95a3e1ea-fee7-4841-8af9-1a6c7c9049f2WestCoastDaz<p>Did you make an changes to the firmware to enable the watchdog?</p><div style="clear:both;"></div>