I think we have read all the recent (2016 or more recent) posts on this, so my apologies if we missed something. We had a photon flashing cyan (fast) and then flash orange twice (slow) and repeating this sequence. I had not seen flashing orange before so we started trying to figure out what was going on. We found some threads (thanks community) and executed "particle keys doctor " then particle "key server" in dfu mode. I figured the issue would be solved, and it sort of was...
We have a feature on our product to enter and exit listen mode. Now this problem seems to consistently after exiting listen mode, but never on system reset (or power cycle).
We tried key doctor again once I found that key doctor may be case sensitive we tried the deviceID with both lower and upper case the behavior continues as above. Our exit code from listen mode is
delay(50); //probably not needed anymore
firmware is 6.1
powered from a 5W adapter and computer USB issue still persists.
I would like to track this issue down, as things I don't understand or can't explain scare me a lot. We thought maybe not all particle servers got the key update, and maybe it depended on what server it connected to... But the fact that so far (we have cycled at least 20 times and counting) that this issue only happens when we exit listen mode using code (above) has me concerned that there is bug, or we are not existing listen mode properly. Just to restate, this NEVER happens on system reset, only when we enter and exit listen mode. It only happens on this particular photon, we have lots of other photon running this code not exhibiting this issue.