Performing a health check with Trezor

This guide details how to complete a health check in the Casa app using your Trezor One or Trezor Model T device. 

First, tap the key icon beneath your vault, then tap the key you want to check. Next, tap "Health Check."

Casa will send you an email prompting you to connect your device. The email should come from


Click "Connect Your Device" in the email. We recommend Chrome browser. 

Once you click the email that Casa sends you from a laptop or desktop computer, you will need to plug in your Trezor device, and unlock it using your PIN.


Plugging in your Trezor device

Once you've plugged in your Trezor device and unlocked it with the PIN, follow the steps in your web browser to sign the health check.


Signing in the web browser

When your screen says "Waiting on Trezor," you must approve the health check signature from the actual device by reviewing the signature details, and pressing the button on the Trezor device (you must hold down the button on the Trezor Model T) to give it the final confirmation. Once you do this, the signature is applied.

If Trezor's website does not load, please ensure you have cookies enabled for regular or Incognito mode (depending on which mode you're using).

Once you apply the signature from your Trezor device, your health check is complete. You've verified that your key is healthy and will be ready to sign when you need it!

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