I have open a brand new nRF52 Development Kit. It is not recognise by the nRFgo Studio. I have tried the trick you mention on this thread:
https://devzone.nordicsemi.com/f/nordic-q-a/27216/nrf52832-can-not-be-recovered
without lack. I did flash the lastest nRF5x-OB-JLink-IF version 170724. After this trick the dev kit is updated to the latest segger firmware v22g but the recovery still gives an error. 'Recovery Failed. Unknown error'.
Any help most welcome
You did this step correct? Hold in the "IF BOOT/RESET" button while Turning on the kit? It should then show up as a Removable Storage Device named "BOOTLOADER" and LD5 should blink 1 sec. intervals. Then you can drag-and-drop this file onto the storage device to reprogram the JLINK firmware (LD5 Blinks fast). Wait 10 sec. then turn off the DK and turn it on.
Done
If you go into "J-Link Configurator" what do you see? (could you provide a screenshot?)
This is the J-Link configurator screenshot. I can manage to update the debugger firmware without any trouble.
What happens when you build and run a SES project from the SDK?
Then use 'cmd' with the command "nrfjprog --recover --log"
As aforementioned. There is something wrong with the wording
