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nRF52840 Dongle not working with softdevice

Hey

We have successfully put the dongle into operation. We were able to develop and successfully test our software.

As soon as we test it with the JLINK on the module it does not work. We do not get an error message.

We can install and test any software on the dongle, but as soon as we use a softdevice it won't work anymore. 

Even the compiled examples can only be installed with the nRFConnect. 

We followed the instructions exactly to set up SES correctly. Has anyone had a similar problem and found a way to fix it?

In the debugger, the program hangs in an undefined function and is in an endless loop. 

We are grateful for any help.

Yours sincerely Franz

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