Ble mesh dfu distributor not visible in nrf ble mesh app

[Nagajans]

I’m working on DFU using the BLE Mesh distributor and target sample codes. I built both with Sysbuild and flashed them onto two separate nRF52840 boards. The target board appears in the nRF BLE Mesh app, but the distributor board does not. Could you help me resolve this issue?

[Hieu]

Hi nagajans,

I cannot reproduce your issue. The Distributor sample appears in my nRF Mesh app just fine. Could you please retry?

If you are still having issue, what NCS version are you using? I am using NCS v3.0.2.

Hieu

[Nagajans]

I am using NCS 2.8. I am flashing mcuboot first and distributor second.

[Hieu]

How are you flashing? Using west flash or the nRF Connect extension for VS Code, you can just flash the sample directly, and both MCUboot and the application will be flashed together.

[Nagajans]

I am using nRF Connect extension for VS Code. I changed to v3.0.2 but still not working. Could you please send the build configuration or procedure for VS code?

[Hieu]

I use the default build configuration setup, except for selecting the target board.

Does your device produce any log at all?

Please make sure you are using the latest version of the nRF extensions for VS Code, and keep them on auto-update.

Could you please make sure that your SDK is not modified? If you know how the SDK is setup with git, use git status. If not, you can just reinstall the SDK to be sure.

When you flash, try to click on the build configuration instead of the application image. see if anything changes.

[Nagajans]

I have not modified SDK. I am having python 3.12.10 version. I am getting the below error,

[Hieu]

This is a flashing issue.

How is it that you previously can flash both the Distributor and Target samples, but now cannot?
What did you change?

The error says clearly what you are missing. Please install nRF Util.

[Nagajans]

I’ve solved the visibility issue and can now see the device in the nRF Mesh app. However, when I try to set a publish address for the Distributor BLOB Transfer Client model, I get an Invalid Parameter error. How should I correctly set the publish address for the Distributor BLOB Transfer Client model?

[Hieu]

This new question is on a different topic, and there isn't enough information to give a quick answer. Therefore, I can only tell you to follow the steps in the guide closely: 
https://docs.nordicsemi.com/bundle/ncs-3.1.0/page/nrf/samples/bluetooth/mesh/dfu/distributor/README.html#testing

If you still have issues, please open a new DevZone case, giving details on the exact steps you have done.