Hello everyone,
I had that problem before and now I have that problem with another V0.9.2 board. I have started IAR and it asked me to update to firmware on PCA10056 so after the update the nordic chip is not flashable anymore. It gets no connection. Is there a solution to rescue those boards or are they officially "bricked"?
You should not be using the old 0.9.2 boards in any case (since they contain early engineering chips that is not the same same you will be using in production). So you should order yourself new nRF52840-DK.
In general I don't recommend using nRFgo Studio. Install the latest command lines tools:
https://www.nordicsemi.com/Software-and-Tools/Development-Tools/nRF5-Command-Line-Tools/Download#infotabs
Close nRFgo Studio and instead run command prompt:
