> For the complete documentation index, see [llms.txt](https://docs.sky-drones.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sky-drones.com/avionics/atlas-handheld/troubleshooting.md).

# Troubleshooting

| Problem                             | Solution                                                                                                                                             |
| ----------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------- |
| Unit doesn't turn on                | Make sure that the unit is charged. Connect the charger and try to power up the unit again.                                                          |
| Drone telemetry is not connecting   | Make sure that your radio module is turned on the modules are paired.                                                                                |
| Air module is not paired with ATLAS | Press and hold ATLAS reset button for 6 seconds. Press and hold Air module reset button for 11 seconds. After 30 seconds the modules will be paired. |
| I can't download the maps           | Internet connection is required to download the maps. Make sure that you have active WiFi or LTE connection on ATLAS.                                |

{% hint style="info" %}
If you can’t find the answers in the troubleshooting section above or in the user manual, please contact us here: <https://sky-drones.com/contact-us>​
{% endhint %}