nrf52840 DK is not Detecting in nrfConnect with PC.

[Soham Mistry]

Hello to all,

I have a problem with nrf52840 DK board, it was not detecting in nrfConnect with PC.

Previously it was working but when I had checked one sensor which is I2C based. Once it appears in port and after some time when I had plugged it in my PC there is no detection of the board in my system. 

Also, LED5 is not blinking and USB cable is also good.

I had tried to connect the board through USB by pressing IF/BOOT but then also it doesn't work.

Please suggest some solution for this.

Thanks in Advance.

Regards 

Soham Mistry

[Soham Mistry]

Okay, thanks for this.

But need to ask that if I want to repair it by changing the IC U2 in DK board. After that does it works?

[Øyvind]

No, this will not work I'm afraid.

[Soham Mistry]

Okay Thanks, Oyvind for all your support. Appriciable.

[Soham Mistry]

But one thing to ask you Oyvind, the voltages in my board are Okay and good. Still, you can think that my kit is broken?

[Øyvind]

Based on the fact that it is not possible to update the Interface MCU firmware, which is only possible through setting the devkit in bootloader mode.