NRF52-DK Firmware Doesn't work

After you flash it, does it work with CIQ?  If you loaded Nordic's app after that, You may have re-flashed for that app. and lost what you'd first flashed.

I just reflashed my with a hex I download just now (same as the one you indicated), and here's what I see in the nordic programmer app:

I'm on win11, and the device manager shows it on com4, and I set it as that in the sim, and it's working fine with CIQ.  I see a green led that flashes (but pretty steady on) but that's it.

Hi Jim,

Thanks for your response,

It doesn't work with CIQ after i flash it.

I Erased all on my board then reinstall the firmware with the hex file using Programmer v3.0.4 (from nrf-connect-for-desktop v3.12.0) on Windows 11 Family version.

When i launch NordicThingy52 app on my simulator. No device are detected.

I changed COM Port multiple times but it doesn't have any effect.

I tried to scan any bluetooth device with BleScan watch app, No device are detected (i loaded the Nordik Hex File and BleScan app found my board).

I don't understand what's wrong

Do you have a thingy52?  The app won't detect anything if you don't and it's not sleeping.  My blescan watch app shouldn't see the DK if it's flashed correctly, as the board doesn't advertise.

In the Nordic Thing52 sample app make the change indicated here in Thingydelegate.mc:  (you'll see everything found while scanning in the console:)

    private function contains(iter as Iterator, obj as Uuid) as Boolean {
        for (var uuid = iter.next(); uuid != null; uuid = iter.next()) {
        	//add next line
        	System.println("found="+uuid.toString());
            if (uuid.equals(obj)) {
                return true;
            }
        }

        return false;
    }

Also with the sample App, you have to tell it to start scanning. (the Menu Key for your device, then start scanning)

The DK can be a bit flaky at times.  If you see nothing, close the sim, disconnect the DK,plug it back in, and run your app again.