# FAQ & Troubleshooting

## Known Issues and Solutions

| Issue                                                                                     | Solution                                                                                                                                                                    |
| ----------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Battery cells out of balance                                                              | Leave on the charger (under supervision) for about 8 hours                                                                                                                  |
| Cannot control gimbal                                                                     | [Update Astro and Herelink firmware](https://freefly.gitbook.io/astro-public/astro/maintenance-manual/software)                                                             |
| Astro drifts up/down while hovering                                                       | [Calibrate accelerometer](https://freefly.gitbook.io/astro-public/astro/maintenance-manual/calibration-and-tuning#sensor-calibration)                                       |
| Cannot record video using the Sony a7R-IV, or "unable to write to card, check card speed" | [Install a faster SD card into the camera](https://freefly.gitbook.io/astro-public/astro/payloads/astro-mapping-payload/operating-handbook/normal-operation#video-workflow) |
| Transfer mission from PC to Herelink                                                      | Upload to Astro using PC, download from Astro using Herelink                                                                                                                |
| Can't connect laptop version of AMC to Astro                                              | Change the [UDP settings](https://freefly.gitbook.io/astro-public/astro/ecosystem/components/pilot-handsets#hotspot)                                                        |
| Gimbal is limp with camera on                                                             | [Make sure that your Astro and Gimbal are on compatible firmware](broken://pages/pVipTw2ochvzRocZAv9l#gimbal-baud-rate)                                                     |

## FAQ

| Question                             | Answer                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
| ------------------------------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Is there a compatible LiDAR sensor?  | <p>Yes! Freefly offers the <a href="/pages/quk55UDfps092T68yOw5">Flux Lidar payload</a> for super fast in-field processing. </p><p></p><p>There are also several 3rd party LiDAR payloads are available using our Smart Dovetail quick release or an adaptor:</p><p>-Emesent Hovermap</p><p>-GreenValley International X3C</p><p>-YellowScan Mapper, Mapper +, and Ultra</p><p>-Phoenix LiDAR Recon-A and Recon-XT</p><p>-Inertial Labs RESEPI</p><p>-ROCK Robotic R3PRO</p> |
| Is there a thermal sensor for Astro? | Yes, see the [Thermal Pro Module](broken://pages/7doATTKPBSjCHLQ4GXSf) for the LR1 Payload and the [Wiris Pro Payload](broken://pages/SWbzoab49OlVarm4Mr1J)                                                                                                                                                                                                                                                                                                                  |

## Advanced Troubleshooting

For in-depth problem-solving, you can check our [Troubleshooting Tree](https://docs.google.com/spreadsheets/d/1DXkk0BmRx9qLbjpBt2KgKYFOQhEGUTcyyQB6rOmb4ac/edit#gid=528435697) or [Astro Support page](https://freeflysystems.com/support/astro-support) for solutions to specific questions or error codes.&#x20;

If you need more help or can't find what you're looking for, please [contact us](https://freeflysystems.com/contact)!


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.freeflysystems.com/astro/maintenance/faq-and-troubleshooting.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.