nRF52840 DK not showing up on PC

[Muqarrab]

Hi,
I have 2 nRF52840 DK but suddenly both are not showing on my PC. I have checked my data cable which is working fine on mobile and transferring data. I have also checked my port which is working fine.

What should I do?

Thanks!

[Vidar Berg]

Hi,

Maybe it could be similiar to the issue reported here in this post: https://devzone.nordicsemi.com/f/nordic-q-a/73729/nrf5340-dk-doesn-t-work even though it's not the exact same board? Either way. Please make sure the switches are in their correct positions and let me know if  LED5 is on or not.

Thanks,

Vidar

[Muqarrab]

Vidar Berg said:

Please make sure the switches are in their correct positions and let me know if  LED5 is on or not.

Yes, switches are in the same position and LED5 in off.

[Vidar Berg]

Thanks for the picture. The nRF is getting powered. But I misread your initial description. I thought one of the boards did work, which is why I suspected it could be something with the board switches. Considering that you see the same on two boards now, I don't think it's likely.

Do you have another PC you can try this on?

[Muqarrab]

Vidar Berg said:

Do you have another PC you can try this on?

Yes. But boards are also not detecting on other PC.

[Muqarrab]

Bluetooth is advertising but not detected on PC.

[Vidar Berg]

Could you try see if the board gets detected if  you keep the reset button pressed while powering on the board?

[Muqarrab]

Yes it shows this screen