Documentation

# License key

On first launch, or when your key expires, Watch opens the "Tensor Dynamics Watch — License Activation" window:

1.  Enter the complete license key from Account or your supplier in Watch.
2.  Click "Verify". The button shows "Verifying…".
3.  On success it shows "Verified ✓" and closes automatically.

Connect to the internet for first activation. If a later verification fails, restore the connection and check that the license is still valid.

## Common error messages

*   **License expired** — contact your supplier to renew.
*   **License suspended** — contact support.
*   **Device not authorised** — contact support to authorize the new computer.
*   **Invalid license key** — copy the complete key again and check for missing characters.
*   **Connection failed** — restore the internet connection and try again.

If the error persists, send the Watch version, error message, and time to [support](https://watch.tensordynamics.org/contact?lang=en), keeping the license key private. Once the main screen opens, follow [first setup](https://watch.tensordynamics.org/docs/getting-started?lang=en) to connect a camera.

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Source: https://watch.tensordynamics.org/docs/license
More Watch guides: https://watch.tensordynamics.org/llms.txt