Serial/BLE DFU Support in NCS

[Akash Patel]

Hello,

I was wondering what examples we have in nRF Connect SDK (NCS) for firmware updates over BLE and serial (receiving an image from another device over UART). Specifically I am interested in this for the nRF5340 but also interested in nRF52 as well. Are there any examples similar to the examples that we had in nRF5 SDK?

Regards,

Akash Patel

[Hung Bui]

Hi Akash, 
I followed this guide and it worked for me. You can use nRF Toolbos/nRFConnect on Android/iOS to do DFU update. 
If you want to do serial , you need to use mcumgr tool on PC, as described here: https://devzone.nordicsemi.com/nordic/cellular-iot-guides/b/getting-started-cellular/posts/thingy91_2d00_fw_2d00_update_2d00_mcuboot

[Akash Patel]

Thanks Hung!

So it looks like we are no longer using the DFU service from nRF5 SDK?

Is there an example that shows serial DFU from one Nordic device to another in NCS? How should I customer get started if he wants to ultimately do a DFU to the nRF53 over serial from a different MCU he has on his board?

Regards,

Akash Patel

[Hung Bui]

Hi again Akash, 
No we don't use the DFU service from nRF5 SDK. In fact the mcumgr and smpsvr were not developed by us (we are contributing to them now but we don't own them). 
I am not aware of an embedded DFU master example yet. The customer may need to have a look at the source code of mcumgr.