Got a problem with “Spark Core” device. When I flash it from WEB IDE it goes fast blinking cyan forever - 3-4 yellow/orange slow blinks, sometimes white for a while. This cycle can repeat for very long time.
Resetting device to default firmware - works perfectly connecting from first attempt. Anything from WEB IDE (even basic blink a led code) - fails.
This happens on 0.5.* and 0.4.* firmware , choosing 0.3.4 looks to behave stable.
particle update cli command gives
There are currently no system firmware updates available for this device.
What can I do to fix my device to work with recent WEB IDE code?