BreakBoard User Manual
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SHENZHEN RAKWIRELESS TECHNOLOGY CO., LTD
ETDX1801191302
After all firmware is written, the device will automatically restart. At this time, use your
mobile phone Bluetooth scan, you will see a device named "RAK813_DFU".
Use the nRF official phone app nRF Connect to connect to the device's Bluetooth.
You can start DFU to upgrade the firmware.
Before upgrading the firmware, you need to import the firmware you want to upgrade
into your phone. Because the mobile phone APP will ask you to choose the firmware you
need to upgrade. This upgrade file is a zip file, not a hex file generated directly after
programming. This file needs to be created. Here we provide a test file, as shown below:
About how to make an upgraded zip file, and how to program DFU step by step, the
official forum has a post detailing this method. Interested parties can view this link:
https://devzone.nordicsemi.com/b/blog/posts/getting-started-with-nordics-secure-dfu-boot
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