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

[SwRa]

Hi,

If you want to go back to 3.7, you will have to add the app source to get access to the old versions of the apps.

• Download the latest 3.7 version of nRF Connect for Desktop from https://www.nordicsemi.com/Products/Development-tools/nRF-Connect-for-desktop/Download?lang=en#infotabs (for macOS this is 3.7.2, for Windows and Linux 3.7.1, because 3.7.2 was not needed and not released for these).
• After starting nRF Connect for Desktop 3.7 a prompt will come up about the 3.8 upgrade. Click “No” on this.
• In the Settings, click on “Add source”, enter the URL http://developer.nordicsemi.com/.pc-tools/nrfconnect-apps/3.7-apps/apps.json and click “Add”.
• Back in the list of all apps, all apps should show up twice now, one with “official” below them and one with “3.7 compatible apps” below them. If you want to hide the incompatible versions, click on “Filter” and deselect “Official”.
• Install the apps you need in the old versions and use them.

Regards,

Swathy

[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