Understanding the LED codes

Then AX3 device has a multicolour LED that is used to feedback to the user its mode, USB state and charging state.

When connected

 LEDNotes
☀Red rapid flashBattery in precharge, wait up to 60 seconds.
☀Red flashDevice in bootloader mode.
◎Amber/white pulseConnected to USB power. Allow up to two hours to fully charge (check software for details). Reported battery level is approximate: anything shown over 85% can be considered as a full charge.
●Solid green/whiteConnected to power, but not a computer.

When disconnected

 LEDNotes
 No lightWaiting to start logging, or logging silently (default).
☀Green flashConfigured to log with the "flashing LED" option added.
◌Blue very brief flashNot configured, or successfully finished a timed recording.
◌Red very brief flashBattery very low, or recording finished early because of low battery or storage capacity.