NRF52840 DK is not powering on.

[S_Nirety]

DK is not powering ON suddenly.

All the Power Switches are selecting properly (SW8 = ON, nRF Power source = VDD, SW6 = nRF ONLY)

USB is connected to J2 Connector.

Observations:

VDD = 1.2V, VBUS(microUSB) = 5V

LED5 = OFF(Not Turning ON), DK is not entering into Bootloader Mode (LED5 Not blinking) after holding IF BOOT/RESET button while power recycling it.

USB is not enumerating on Ubuntu and not detecting USB Port on Windows.

But onboard JLink is working when we connect external board (nRF52832) with external power source, using below connection diagram. 

LED5 is turning ON and I am able to flash from nRF Connect Desktop.

 

Could you please help me out to resolve Power problem.

[Jared]

Hi,

1. Please go through the list in this thread.
   1. Is the issue still persistent?
2. Could you try supplying the board through a coin cell or external supply header? 
   
   1. Is the LED turning ON?

regards

Jared

[S_Nirety]

Thanks for the response,

I got a new USB cable and now DK is powering ON and works properly.

Learning: Cables used for mobile charging will not work with DK after a certain period of time.

Regards

S Nirety