> For the complete documentation index, see [llms.txt](https://docs.gremsy.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.gremsy.com/payloads/general/upgrade-firmware-and-software.md).

# UPGRADE FIRMWARE & SOFTWARE

This page provides step-by-step instructions for updating the **firmware and software** of Gremsy Payload products.

Please refer to the corresponding product guide for the correct update procedure, required tools, and update files.

> **Important:** Always verify the current firmware/software version of your Payload before performing an update.

For the **latest available firmware and software versions**, please check the links provided in this section.

| Product    | Firmware Version                                                                                              | Software                                                                                                               |
| ---------- | ------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------- |
| **VIO**    | <a href="https://github.com/Gremsy/Vio-Firmware/releases/latest" class="button primary">VIO Firmware</a>      | <a href="https://github.com/Gremsy/Vio_PayloadSoftwareV3/releases/latest" class="button primary">VIO Software</a>      |
| **ZIO**    | <a href="https://github.com/Gremsy/Zio-Firmware/releases/latest" class="button primary">ZIO Firmware</a>      | <a href="https://github.com/Gremsy/Zio-PayloadSoftwareV3/releases/latest" class="button primary">ZIO Software</a>      |
| **ORUS-L** | <a href="https://github.com/Gremsy/OrusL-Firmware/releases/latest" class="button primary">ORUS-L Firmware</a> | <a href="https://github.com/Gremsy/OrusL-PayloadSoftwareV3/releases/latest" class="button primary">ORUS-L Software</a> |


---

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