nrf52 DK does not show up on PC

RE: nrf52 DK does not show up on PC

Marjeris Romero — Mon, 21 Jan 2019 11:31:17 GMT

Happy to help!

RE: nrf52 DK does not show up on PC

YYYeung — Mon, 21 Jan 2019 11:30:12 GMT

Hi, yes the file makes the board work, thanks Marjeris!

RE: nrf52 DK does not show up on PC

Marjeris Romero — Mon, 21 Jan 2019 11:22:55 GMT

Hi,

You can follow this link to download the OB firmware.

Best regards,

Marjeris

RE: nrf52 DK does not show up on PC

YYYeung — Mon, 21 Jan 2019 08:44:20 GMT

Hi,

I have connected RESET to GND. The bootloader shows up for a short period then disappeared. I've checked with another answer from this link. We have the same problem, but the nRF5x-OB-JLink-IF provided by the answer has expired so I don't know how to reflash the board. Is there any other way to reflash it?

Thanks!

RE: nrf52 DK does not show up on PC

Marjeris Romero — Fri, 18 Jan 2019 12:44:12 GMT

Hi,

If all 4 LEDs are ON it means that the device is inside the error handler. If the reset button didn't work, try to use a wire and connect RESET (P0.21) to GND, power cycle the board and then follow step 4 on the guide.

-Marjeris

RE: nrf52 DK does not show up on PC

YYYeung — Fri, 18 Jan 2019 12:10:13 GMT

Hi! I have tried the checklist except for the power supply voltage because I don't have a tool for now. And all the other methods don't work. The DK always have 4 LEDs on.

Thanks!

RE: nrf52 DK does not show up on PC

Marjeris Romero — Fri, 18 Jan 2019 11:53:55 GMT

Hi,

Have you tried going through this checklist?

Best Regards,

Marjeris