I tried to flash firmware bcf-kit-sigfox-climate-monitor, flasjing ended OK, after I disconnected core module from USN cable and attached batteries red LED dios started constantly blinking and module cannot be paired with USB dongle.
If I tried different firmware it was OK, so there is no HW problem. I was flashing with all other modules (battery, sigfox etc. disconnected).
What exactly that flashing means? Is there some documentation on that, some description what different types of blinking means?