I have a Photon that has been working trouble free for a few years. I powered it down today in order to move it to a new NCD relay board. Upon powering it back up, it would not connect to WiFi. It goes into SOS mode. Tried to go into safe mode but it won't connect. If I move it to another location where the signal from its "known" network isn't available, it flashes green as normal, trying to find a network, i.e. it goes into SOS mode only when within reach of its known network.
It worked flawlessly right up to powering off. The network credentials have not changed and the network was not touched. WiFi signal strength is heathy. The firmware is unchanged. All i did was power it off and back on again.
I put it back in the original board; no joy. I put it in a breadboard and held it very near the WiFi access point, i.e. strongest signal possible. No joy.
That's what I was thinking. But I can only do that via USB, right? I need to go buy a USB-C to micro USB cable 'cause my Mac doesn't have USB-A port. Dammit.
I took this video this AM and uploaded to Drop Box. I pasted the entire link to it here but it wouldn't load/play. So I removed the 'https:' and now you can click on it and it should open in your browser.
It's in .mov format. If that doesn't work for you, I can convert it to something else.
Note that i was in my car close to an outdoor WiFi extender. As I drove away, the LED changed to the familiar continuous green flashing once I was out of range of the WiFi signal.
Let me know if this helps determine what the Photon is unhappy about.
@blshaw45 the video appears to be showing a single blink SOS code indicating a hard fault. What I can't make out is the pattern and colors after it briefly goes green. After the SOS, it goes white, then briefly blinks green then I can't tell if there is a brief red or orange solid before the SOS kicks in again. Is there a brief orange color in there?
Have you tried running just tinker to see if the error persists?
OK Gustavo, I was finally able to get my hands on a USB-A to USB-C adapter. But when I connect the Photon to any of the three USB-C ports on my Macbook, the computer doesn't see it. The Macbook doesn't ask if it's OK to connect it as it usually does with any USB device and the 'particle usb list' command using Terminal doen't find anything (the Photo was in DFU mode).
BTW, I have tried two USB cables that came from Particle. Can you think of anything else I can try? Do I need to throw this thing away?
Does the device restore USB tool previously linked above detect it?
Do you have another computer to try?
If not, maybe it goes in the box of "One day I'll figure it out..."
Regarding the device restore tool: nope. Just tried another computer: no joy there either. So now I've had a Boron die on me and now a Photon. Luckily I bought a couple of Photon 2s a while back, just because they were cheap, so at least my app is back in operation.
