#Connect Keycard Shell to a wallet app

Keycard and Keycard Shell must work together with a wallet app that supports QR signing. After setting up your Keycard, you need to connect your Keycard Shell to a supported wallet app.

#What to expect

• The wallet app is an interface to manage your crypto assets. The private keys remain on your Keycard, and the wallet app has no access to them.
• You can connect your Keycard Shell to one or multiple wallet apps.
• You can disconnect Keycard Shell from a wallet app at any time.
• You can use the wallet app on your phone, computer or browser, depending on what the app supports.

#About wallet app types

Before connecting to a wallet app, you must select the type of wallet app you want to connect to in Keycard Shell. Here are the options:

• Ethereum: For wallet apps that support Ethereum and EVM-compatible networks, such as MetaMask.
• Bitcoin: For wallet apps that support Bitcoin, such as Bluewallet.
• Bitcoin multisig: Select this option to use Bitcoin multisig with the wallet app.
• Bitcoin testnet: Select this option to use Bitcoin testnet with the wallet app.
• Multiple blockchains: For wallet apps that support multiple blockchains, such as Bitget.

#Connect Keycard Shell to a wallet app

In this process, you use your wallet app to scan a QR code displayed on your Keycard Shell.

#Step 1: Prepare the wallet app

Some wallet apps like Metamask, require you to create a new wallet account or import your existing wallet before connecting Keycard Shell even if you if you don't plan to use it. This wallet is separate from your Keycard and Keycard Shell.

1. 1
   Open the wallet app you want to connect to on your computer or smartphone.
2. 2
   If required, create a new wallet account or import an existing one using your recovery phrase.
3. 3
   In your wallet app, choose the option for connecting a hardware wallet.
4. 4
   Select QR-based or Keystone depending on which one is available.
5. 5
   Continue with the instructions in your wallet app to open your computer or smartphone camera.

#Step 2: Prepare your Keycard Shell

1. 1
   Insert your Keycard into Keycard Shell to power it on.
2. 2
   Enter your Keycard PIN.
3. 3
   Select Connect software wallet on Keycard Shell.
4. 4
   Select Ethereum, Bitcoin, Bitcoin multisig, Bitcoin testnet or Multiple blockchains.

#Step 3: Scan the QR code

1. 1
   Scan the QR code displayed on the Keycard Shell screen using your computer or smartphone camera.
2. 2
   In your wallet app, select the accounts you want to use in the wallet app.
3. 3
   In your wallet app, confirm to connect the selected accounts.