> For the complete documentation index, see [llms.txt](https://play.robobattles.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://play.robobattles.com/craft/hub-setup.md).

# Hub Setup

## Powering On/Off

To power on, press the green button.

To power off, press and hold the green button until the light turns off.

## Updating Firmware

The first time you use a brand new hub, you'll need to update its firmware with the [LEGO® Powered Up app](https://www.lego.com/en-us/service/device-guide/powered-up/?locale=en-us).

If your hub ever has issues, you can repeat these steps to reinstall the firmware.

<details>

<summary>Firmware Update Instructions</summary>

1. Remove and reinstall your hub's batteries.
2. Download the [LEGO® Powered Up app](https://www.lego.com/en-us/service/device-guide/powered-up/?locale=en-us).
3. Make sure your smart device has Bluetooth enabled.
4. Open the app.
5. Tap "Create".

<img src="https://1320923231-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F3lMcmYNZwepJ8VBzSDr1%2Fuploads%2F22bII5po0spPBNtEmFdr%2FSetupFirmwareCreate.jpg?alt=media&amp;token=1a9593a4-ab49-4fa3-a63d-f08614473781" alt="" data-size="original">

6. Tap "+".

<img src="https://1320923231-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F3lMcmYNZwepJ8VBzSDr1%2Fuploads%2Fn4Xt5LpRT50bMWnwgjrb%2FSetupFirmwareAdd.jpg?alt=media&amp;token=65610b97-c486-4cbb-8c10-569193a841dd" alt="" data-size="original">

7. Tap "->".

<img src="https://1320923231-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F3lMcmYNZwepJ8VBzSDr1%2Fuploads%2FTjfzFAOQtRDR2PBivlmT%2FSetupFirmwareContinue.jpg?alt=media&amp;token=aa9429d1-6082-427f-8ca0-82d96291a0af" alt="" data-size="original">

8. Tap "Controller".

<img src="https://1320923231-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F3lMcmYNZwepJ8VBzSDr1%2Fuploads%2FK0EclHDBGZd50ZcoEyUj%2FSetupFirmwareController.jpg?alt=media&amp;token=7271e471-7846-45c6-8cfc-a064b9051dc8" alt="" data-size="original">

9. Choose the first controller type.

<img src="https://1320923231-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F3lMcmYNZwepJ8VBzSDr1%2Fuploads%2F6uxQlVvBZj6JcCF9R3Zz%2FSetupFirmwareChooseController.jpg?alt=media&amp;token=da0bb0bd-824f-449f-8f5e-c9f7f48e358c" alt="" data-size="original">

10. Accept Bluetooth permissions.
11. Press the lock button.

<img src="https://1320923231-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F3lMcmYNZwepJ8VBzSDr1%2Fuploads%2FAM0FaqY0C7OCpxiRY9Ky%2FSetupFirmwareLock.jpg?alt=media&amp;token=754f4c78-a170-4985-96ab-78917b075dec" alt="" data-size="original">

12. Press the Bluetooth button.

<img src="https://1320923231-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F3lMcmYNZwepJ8VBzSDr1%2Fuploads%2FfWdRwIseHyw67YA04DRw%2FSetupFirmwareBluetooth.jpg?alt=media&amp;token=b7576dad-5f08-4261-9cd0-a2e4cabc6e54" alt="" data-size="original">

13. Press and hold the square green button on your hub until the light begins flashing multiple colors.
14. Wait for the firmware update to complete.

<img src="https://1320923231-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F3lMcmYNZwepJ8VBzSDr1%2Fuploads%2FUOdbdpcuzu3a8UMfnY30%2FSetupFirmwareUpdating.jpg?alt=media&amp;token=0a57eb3e-a3dd-46b8-9799-003bdc71f320" alt="" data-size="original">

</details>


---

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