NRF5340DK not working ! Failed to detect

Hi,

We have five NRF5340DKs with us and off late it seems three of them does not get detected by the PC. In fact, what i understand is that the interface MCU seems to be not working (LED5 does not turn ON). This is very unfortunate as one of those boards was a fresh board purchased very recently.

1. Below is the screenshot of our DK configuration to run the MCU in 1.8V. (SW9 ->USB)

In the non-working boards, the VDD voltage is 2.05V instead of 1.8V.

2. Below configuration of 3.3V works fine (SW9 ->VDD)

3. I have double checked the USB cables and PC. It is an issue with the DK, possible damaged ? Any insight into this would be really helpful!

regards,

Vinu

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