I have 1 Photon (working fine) and several Cores (until recently working fine too) having problems.
I see 2 different/type of problems:
1 Core can’t get into listening mode; only in DFU mode and factory reset can be performed. I already tried a Full Firmware Upgrade http://support.particle.io/hc/en-us/articles/203108844-Perform-a-Full-Firmware-Upgrade?redirected=true but after performing “particle flash --usb cc3000” the Core continues blinking red/blue.
My other cores: I performed a factory reset - got the blinking blue led, entered WiFi credentials (particle setup) but the Cores keep blinking cyan/green.
Leaves me today with 1 working Photon and 3 “broken” Cores.
Anyone can point me into a direction how to “re-activate” my Cores?