NRF52 Development board not powerd up

[Shrikrishna Katore]

When i connect the board to pc its not detected and No J-link device in device manager But when i press and hold the IF BOOT/RESET button and power cycle the board the LED5 Blinks and i can see the new BOOTLOADER drive for short time. What is the problem?

[Hung Bui]

Hi Shrikrishna,

It could be an issue with the firmware on the Segger chip on nRF52 DK. Could you download nRF5x-OB-JLink-IF from here and drag and drop to the BOOTLOADER driver ?

This will re-flash the Segger chip.

[Shrikrishna Katore]

Thanks Hung Bui, It Worked. But how this happend?, Earlier ,I didn't tried to flash in bootloader mode. I just simply drag and dropped the s132 softdevice hex file in JLINK Drive .

[Hung Bui]

I'm not sure how it happened. But if you see the issue again, please let us know.