# Update Chain Metadata in Parity Signer

Due to the fact that your **Parity Signer Device** is always offline and is air-gapped, there is a unique system in which you must partake to update the chain metadata so that your transactions are valid. You can use the [Parity Technologies Metadata Portal](https://metadata.parity.io/#/kusama), or the [Nova Wallet Metadata Portal](https://metadata.novasama.io/) to find QR codes which will provide your **Parity Signer Device** with the information required to update the chain metadata.

<table data-full-width="false"><thead><tr><th>Chain Description</th><th>Parity Technologies Metadata Portal</th><th>Nova Wallet Metadata Portal</th></tr></thead><tbody><tr><td>Polkadot / Kusama / Westend Relay Chains</td><td>Supported</td><td>Supported</td></tr><tr><td>Parachains, Solochains</td><td>Not Supported</td><td>Supported</td></tr></tbody></table>

{% hint style="warning" %}
The following steps need to be carried out on your **Parity Signer Device**.
{% endhint %}

1. Navigate to the appropriate metadata portal. Note: This should be done on a device which is **not** your Parity Signer Device.
2. `Select` the appropriate **blockchain** that you wish to update the metadata for.
3. If you are updating a chain for the first time, `Select` the **Chain Specs** tab at the top of the metadata portal screen.
4. Using your Parity Signer Device, `Select` **Scan**.
5. Scan the **Chain Specs QR code** with your Parity Signer Device.
6. Review the verifier certificate and `Select` **Approve**.
7. `Select` the **Metadata** tab at the top of the metadata portal screen.
8. Using your Parity Signer Device, `Select` **Scan**.
9. Scan the **Metadata QR code** with your Parity Signer Device. Note: this can take a few minutes to complete.
10. Review the verifier certificate and `Select` **Approve**.


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