Faulty nrf5340 PDK.

[Subhojyoti]

Hello, Just purchased a nordic NRF5340 PDK from digikey. On plugging the micro USB 2.0 and switching on the device , the device powers up for couple of seconds (LED1 & LED5 glows) then powers down automatically. I measured the voltage at VDD pins which goes from 3V to ~ 1 V within couple of seconds after powerd up. What is the issue ? How to solve or ask for replacement ?

Thanks

[awneil]

Subhojyoti said:

purchased ... from digikey

Subhojyoti said:

How to ... ask for replacement ?

Obviously, you'd need to contact Digikey about that!

[Joakim Jakobsen]

Hi.

There is a switch marked "nRF power source" on yourt PDK. Could you check what position this is in?

Br,
Joakim

[Subhojyoti]

I have extensively used nrf52840 dk so I know about "nRF power source " switch. It is in VDD. Just to mention that the issue is solved. I kept the usb connected even after it powers down after 2 hours it powered up (magically without any interference) on its own and started working normally.

[Divya BM]

Hi Subhijyoti,

I am facing the exact same issue. Did the board behave normally after its recovery in subsequent connections?

Regards,

Divya 

[Subhojyoti]

I face the same once after the recovery. But during that time the recovery happened with 15-20 mins.