On the backside of the Nuki Box between the plug and the antenna connection you can find the LED of the Nuki Box, which indicates different modes by its signalization.
| Stage | Color | Max. Time |
|---|---|---|
| Booting | White | 30s |
| BLE Self-Test | Blue | 10s |
| Wi-Fi Self-Test | Cyan | 10s |
| GSM connecting | Red | 40s |
| GPRS connecting | Yellow | 30s |
| SEE connecting | Purple | 10s |
| Online | Green | - |
| During active output | White | same time as relay |
