I bought this board a week back and was able to flash programs on it. Suddenly it stopped working. From the IDE it will say Flash successful but photon would still be running old code. I read on forums and docs on particle site. I am trying to use CLI to do firmware upgrade. I can login and see my device using particle list. But even though i have put my device in DFU mode (it is blinking yellow), i get this message
!!! I was unable to detect any devices in DFU mode…
Your device will blink yellow when in DFU mode.
If your device is not blinking yellow, please:
- Press and hold both the RESET/RST and MODE/SETUP buttons simultaneously.
- Release only the RESET/RST button while continuing to hold the MODE/SETUP button.
- Release the MODE/SETUP button once the device begins to blink yellow.
Error writing firmware…No DFU device found
I am using Mac and have tried both USB ports. I am stuck and I dont know how should I proceed further. Any help would be appreciated.