nRF52840 power on led(Led 5) blinking continuously

[pankti583]

Hello,

nRF52840 led 5 blinks continuously causing reset and not performing code properly. I tried different USB cables but it still blinks. What could be the reason, is it only causing reset? and what can be done to make it proper?

Thank you

Pankti

[Michael111]

This worked for me. thanks.

[Michael111]

What causes this problem?

[Esmaeill]

I have same problem :( 

"press the IF BOOT/RESET button while power cycling" not worked for me & led5 blinking continuously !!

[Michael111]

Hello Esmaeill,
does the board shows up as "bootloader", after you pressed RESET when powering the board up?
Best regards,
Michael

[Amanda Hsieh]

Hi, 

I think your issue is handled by this case  ld5 flashing quickly, board not visible, PCA10056 IF BOOT not work! . 

-Amanda H.