> For the complete documentation index, see [llms.txt](https://support.keyst.one/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.keyst.one/3rd-party-wallets/polkadot-wallets/metadata-update-or-reset.md).
# Metadata Update or Reset
If you encountered the **error** "Bad Input data. Failed to decode extensions. Please try updating the Metadata for Kusama/Polkadot network" while interacting with the Polkadot Network, it may be due to a runtime upgrade in Polkadot{.js} UI.
This tutorial will show you how to resolve the metadata on Keystone, a hardware wallet integration with Polkadot{.js} and SubWallet.
## Update Metadata on Keystone
If you need to update the metadata for the Polkadot network using Keystone, follow these simple steps:
1. Click on the provided link to access the [Metadata Portal](https://metadata.parity.io/#/polkadot) for Keystone. Switch \[Chain Specs] to \[Metadata] to access a dynamic QR code.
2. Tap the \[-] icon to activate the camera with your Keystone device.
3. Scan the QR code on the Metadata Portal and tap \[Approve].
{% hint style="info" %}
Note:
If you need to update the metadata for the **Kusama** network, click on \[Kusama] on the Metadata Portal and follow the same steps.
{% endhint %}
## Reset Metadata
If you need to reset the metadata for either Polkadot or Kusama network, follow these steps:
1. Ensure you have added the \[DOT] or \[KSM] by tapping the three dots on the right to access \[Manage Assets], and then tapping \[DOT] or \[KSM].
2. Tap the three dots in the right corner.
3. Tap \[Reset Data], read the warning, and tap \[Confirm].
