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 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].


If you need to update the metadata for the Kusama network, click on [Kusama] on the Metadata Portal and follow the same steps.

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].

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