In the world of nRF5 SDK for Mesh v5.0.0, does DFU support updating Mesh nodes directly using a mobile app?

[John Y]

Hi,

Currently I am using nRF52840 as nodes for mesh network. However, by reading the sdk5 documents and example, I did not see any clues to update the firmware with DFU on a smart phone app when it is run as a Mesh node? Therefore does anyone know how to  implement this function to the mesh node?

Thanks in advance,

John C

[Hung Bui]

Hi John, 
Please be aware that nRF5 SDK was deprecated and had no development since 2020. 

Regarding your question, you can take a look at the LPN node. In the sample, we integrate the standard BLE bootloader and you can update the LPN node firmware the similar to the normal BLE application. 
Please take a look here: https://docs.nordicsemi.com/bundle/nrf5_sdk_mesh/page/md_examples_lpn_dfu_ble.html

You may need to get familiar to how the normal BLE application can be updated.