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
| | LED | Notes |
| ☀ | Red rapid flash | Battery in precharge, wait up to 60 seconds. |
| ☀ | Red flash | Device in bootloader mode. |
| ◎ | Amber/white pulse | Connected 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/white | Connected to power, but not a computer. |
When disconnected
| | LED | Notes |
| | No light | Waiting to start logging, or logging silently (default). |
| ☀ | Green flash | Configured to log with the "flashing LED" option added. |
| ◌ | Blue very brief flash | Not configured, or successfully finished a timed recording. |
| ◌ | Red very brief flash | Battery very low, or recording finished early because of low battery or storage capacity. |