No J-Link device found

[Beginner]

Hello, I am using PCA10040 and sdk12.2.2. I am trying to load ble_app_template code. But when I try to flash my code in pca10040 I am getting error as "No Jlink Device found". I am able to see my dk in device manager as "JLink CDC he UART Port(com14)". I am getting com port still I am unable to load the code. Screenshot(1) - nrferrorgostudio.PNG Screen shot(2) - nrferror.PNG Thanks,

[Bjørn Kvaale]

Have you flashed the softdevice to your nrf52? You can do this by installing nrfGoStudio. When you open nrfGoStudio, find the device manager section -> nrf52 development boards -> click on the Segger tab -> press Erase all -> press Program SoftDevice tab -> press Browse ... -> find softdevice under SDK folder -> components -> softdevice -> s... (choose the correct softdevice) -> hex -> choose the hex file. Then, press the Program button. Then try flashing & downloading your code again. Hope that helps!

Have you also checked that you have installed all of the required software? See the "nrf5 Getting Started" tab -> "Nordic Tools & Downloads" in the Nordic InfoCenter.

Hope that helps!

[Beginner]

Hello, I tried your suggestions but my nrf dk is not getting detected in nrf go studio. (screenshot1) My new challenge is when I click on flash download option I am getting error as "No cortex-M SW device found". I am refering to devzone.nordicsemi.com/.../ but I am not able to solve my challenge. I am attaching screenshot(2) of my settings in above question. Thanks,

[Bjørn Kvaale]

Are you using Windows? If yes, do you see the JLINK drive when you open windows explorer? Your screenshot 2 looks very similar to my screenshot too. The SN number is slightly different for me. Also, under SW Device, I can see a device name "ARM CoreSight SW-DP". I am using the same exact board as you, so it should work. Are you certain that you have installed all the required software?

[Bjørn Kvaale]

Also, this link could help :)

[MartinBL]

@Beginner: It might not be relevant since your kit seems to be recognized by your computer, but maybe you can try/answer these standard questions.