Performing Device Firmware Updates (DFU) in Bluetooth Mesh

The nRF Connect SDK supports two DFU methods when updating your firmware over-the-air (FOTA) for your Bluetooth Mesh devices and applications.

  • DFU over Bluetooth® mesh using the Zephyr Bluetooth Mesh DFU subsystem that implements the Mesh Device Firmware Update Model specification version 1.0 and Mesh Binary Large Object Transfer Model specification version 1.0.

  • Point-to-point DFU over Bluetooth® Low Energy using the MCUmgr subsystem and the Simple Management Protocol (SMP).