Simple Management Protocol module

The simple management protocol module is responsible for performing a Device Firmware Upgrade (DFU) over Bluetooth® LE.

You can perform the DFU using for example the nRF Connect for Mobile application. The DFU button appears in the tab with the connected Bluetooth® devices. After pressing the button, you can select the *.bin file that is to be used for the firmware update.

Module events

Source Module

Input Event

This Module

Output Event

Sink Module

Source modules for module_state_event




Bluetooth LE latency module


Sink modules for module_state_event


See the Overview: Firmware architecture for more information about the event-based communication in the nRF Desktop application and about how to read this table.

Implementation details

nRF Desktop uses the simple management protocol module from Common Application Framework (CAF). See the CAF module page for implementation details.