nRF Connect for Desktop can't find device nRF52840-Dongle and PPK2.

[Dmitry Orlov]

On Windows 7 64 after update to 3.8 (and 3.9)  nRF Connect for Desktop the Bluetooth Low Energy and Power Profiler can't find device nRF52840-Dongle and PPK2.

What to do? On the other computer with Win10 it works

[Dmitry Orlov]

At the stage "Add source" I got error

Unable to download apps list: Unable to download http://developer.nordicsemi.com/.pc-tools/nrfconnect-apps/3.7-apps/apps.json: net::ERR_CONNECTION_RESET. If you are using a proxy server, you may need to configure it as described on https://github.com/NordicSemiconductor/pc-nrfconnect-launcher 

And also direct click on the URL

This site can’t be reached

[SwRa]

Hi Dimitri,

Sorry to keep you waiting.. I tried this myself both in my work PC and in my personal laptop and was able to do it without any error.. Perhaps you could try uninstalling nRF Connect for desktop once more and try installing Version 3.7.1 again? I am not sure what is causing this error and have raised the question internally. I will get back to you as soon as we figure it out.. In the meantime, kindly let me know if uninstalling and installing it again and then following the steps mentioned below helps.

Regards,

Swathy

[Dmitry Orlov]

Perhaps you could try uninstalling nRF Connect for desktop once more and try installing Version 3.7.1 again?

Yes, of cause. In any case it downloads the last versions of the applications, and if I try to add 

"http://developer.nordicsemi.com/.pc-tools/nrfconnect-apps/3.7-apps/apps.json" 

I got error. But right now I try to add https://developer.nordicsemi.com/.pc-tools/nrfconnect-apps/3.7-apps/apps.json (secure one) and it works! Even on my Windows 7 I can run PPK2 and I hope all other applications. Thank you a lot! 

[SwRa]

Hey Dimitri,

Glad to know that it worked out for you. 

Dmitry Orlov said:

Do you have protocol description for PPK2? I want to made my own software for it, but I found only source code for Power Profiler that is not so clear for me.

Unfortunately, there are no specific protocol description. You can also refer this page and go through the python API for PPK2 and perhaps it might help. Good luck.

Regards,

Swathy

[Dmitry Orlov]

Thank you. It isn't what I want, but better than nothing.