This article details how to set up (initialize) your Ledger Nano S hardware wallet for use with Casa App (formerly Keymaster).
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The setup of the Ledger Nano S is identical to the setup of the Ledger Nano X.
To begin setting up your Ledger device, verify the integrity of the device box to ensure that it is free from tampering. There is no tamper seal, but there is a verification step later to detect tampering.
This guide assumes you will initialize the Ledger before running Ledger Live. However, their software can also walk you through these steps.
Unbox the device, connect to computer using the provided cord, and begin following instructions on the device for setup.
Press both buttons to begin, then click through the prompts on screen which explain using buttons for navigation and selection. You will select “Configure a new device” when given the option.
Next, you’ll set the PIN code on your Ledger. It’s very important that you do not forget this! The Ledger Nano S will perform a factory reset after 3 failed PIN attempts. We recommend using the same a 4-8 character PIN (no zeros) across all your hardware devices, and saving it in a password manager.
To set PIN: use left & right buttons to cycle up and down through digits and press both buttons at once to select a digit. Once completed, scroll to select the checkmark to confirm the PIN you've set.
Now the device will prompt you to write down the 24-word recovery seed phrase which would serve as a backup to your Ledger.
While Casa enables a fully seedless setup, Ledger will check that you've written these down properly by quizzing afterward. Use the provided card to write the 24 word seed, use it as a reference for the “seed phrase quiz” on the device, then destroy the card and keep your device safely stored until your next Casa call.
|Your seed phrase is a copy of your private key. If at any point you believe it may have been compromised, you must complete a key rotation to regain full security. We strongly recommend you destroy the seed phrase card as soon as you have completed this step.|
Use the right button to scroll through each word on the device, writing them down for confirmation in the next step.
The device will ask you to select each of the 24 words in order to confirm.
|Seed words will be shown on quiz in the same order as given; if asked for word #1 and shown word #24, you can scroll left once to select the correct word, then press both buttons to confirm.|
After entering and confirming the recovery seed words and completing the security checklist, the device will now display “device ready”. Click the right button once and select “dashboard" to proceed. You will know you're ready when you see the "Settings" icon on the device screen.
Head to shop.ledger.com/pages/ledger-live to start the Ledger Live download.
Open the software and follow these steps:
Get Started > Nano S > Connect your Nano S > Check my Nano.
You can then click "Continue" in order to enter into Ledger Live.
With Ledger Live open, select “open manager” on the left side of the screen and update the firmware. Follow the instructions on your screen to update to version 1.6.0 (November 13, 2019).
|Casa always recommends getting the latest firmware when initializing a device for the first time, before the key is funded.|
The final step is downloading the Bitcoin app. Once you see the Bitcoin icon on your device, you can quit Ledger Live. No need to “add Bitcoin account” since we will not be using Ledger to manage our assets.
Finally we'll configure the Ledger to automatically export the public key when prompted by Casa. This last step is optional but recommended to reduce timeout errors during setup and signing. Select the Bitcoin app on the device, navigate to Settings > Public Keys Export > Auto Approval. Once auto-approval is selected, your device will return to "Application is ready".
That’s it! Your Ledger Nano S is now initialized and ready to be added to your keyset.
Keep your Ledger somewhere safe and secret. Though there may not be funds in the wallet yet, keeping it secure and protected from tampering prior to funds placement is very important!
If you choose to go seedless, you may at any point here destroy your Ledger's seed phrase with fire (or other destructive element of your choice). Be safe!