Replacing Your Mobile Key With a Second Hardware Key

Our basic 2 of 3 multisig key manager, Keymaster, has 3 keys by default:

- Mobile Key (stored on your phone)

- Hardware Device Key (Trezor or Ledger)

- Casa Recovery Key (emergency key held by Casa)

While most Keymaster users have the above key setup, we allow the user the option to replace the Mobile Key with a second Hardware Device Key, so that they 3 keys become:

- Hardware Device Key

- Hardware Device Key

- Casa Recovery Key

Replacing your Mobile Key

In order to replace your mobile key with a second hardware device, you must first have a second hardware device available and ready to use. We recommend you use your hardware devices exclusively with Keymaster, so you should use a hardware device that's not currently in use with anything else

You can purchase a Ledger or Trezor device from our store

Replacing your existing Mobile Key with a second Hardware Key does involve an on-chain transaction to a new keyset you'll create in Keymaster. 

1. From within Keymaster, tap "Switch Key Setup" from your Basic Multisig screen.

2. Follow the instructions to connect your new hardware key.

3. Transfer your funds from the old keyset to your new keyset (we’ll guide you through it in the app).

You're all set! Don't forget to complete a Health Check for your Hardware Device keys to ensure they are both working properly. 

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