I bought two photons recently. The first one is up and running great and I’ve been doing some neat beginner things with it (temp / humidity, etc.). I decided today to start a new project with the other one that I’m pretty sure worked for a little while (I did manage to “claim” it, after all), but I can’t say for sure since I didn’t really hook up any sensors or other stuff to it.
In any case, this Photon was now showing up as offline when I would power it up – but the light was “breathing cyan”. Occasionally after a power cycle the device would be visible “online” for a few seconds, but then it would be offline again. I tried safe mode, and just about everything else I’ve found in the forums… I even resorted to trying a factory reset when nothing else worked. I am able to connect to it over USB – kind of. The “Particle setup” command line process sees the device and gets as far as trying to tell it WiFi info before it just hangs – showing “obtaining device information” over and over. Connecting via Coolterm lets me set SSID and password… but the Photon never actually goes online.
I eventually managed to get the latest copy of df-util.exe (had to upgrade my older 7-Zip to open the dfu-util-0.8-binaries.tar.xz file) and I successfully (re) loaded 0.4.4 firmware binaries. But still the Photon “breathes cyan” and won’t connect. In fact, I don’t see it on the list of WiFi devices in windows ether, so it really feels like something with the WiFi is just “broken”.
If anyone has any suggestions of something else to try, please let me know!