Photon Challenge (Breathing Green)

[Moors7]

You could try following this tutorial, it has been useful in the past:

Tutorial: Particle-cli on Mac OSX [26 Sep 2015]

1.) Install node.js from http://nodejs.org/download/ [Version 0.10.x would be good] [image] 2.) Once that is completed, launch your “terminal” [image] run the command sudo npm install -g particle-cli 3.) Once the installation is completed, you test that everything works by typing: particle login DFU-UTIL This is optional and added here in case you could not follow the github steps (https://github.com/spark/core-firmware#3-device-firmware-upgrade-utilities). 1.) Launch a Terminal and…

Regardless of the CLI, can the second one get into Safe Mode? If so, try flashing Tinker that way?