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Coldcard Hardware Wallet
Coldcard Hardware Wallet
  • Why we recommend Coldcard
  • Guide Overview
  • Wasabi Wallet companion app
  • 🏰Security Overview
    • Is Coldcard secure?
    • Securing the wallet: overview of the basics
    • How people lose their Bitcoin
  • 🔐Create your wallet & backup
    • What you need
    • Initializing the device
    • Coldcard PIN Overview
    • PIN Steps
    • Updating the Firmware
      • Verifying the Firmware
    • Wallet backup basics
    • Create Wallet backup
      • Dice Roll Method (optional)
      • MicroSD backup (optional)
    • Seed XOR (optional)
      • Steps for Seed XOR
      • Restoring from Seed XOR
    • Passphrase Overview
    • Steps for adding a passphrase
      • Lockdown Seed
    • Installing Wasabi Wallet
      • Verifying Wasabi Wallet
    • Connecting to Wasabi Wallet
      • Air-Gapped Coldcard (optional)
  • ⛓️How to use Coldcard with Wasabi Wallet
    • Steps for receiving Bitcoin payments
    • Steps for sending Bitcoin
      • Privacy/Coin Control
      • PSBT Method (optional)
  • 🏹More Features
    • PIN Security Features
    • Power & Login
    • Address Explorer
    • BIP-85 Wallets
      • Using BIP-85 with Wasabi
  • ⚠️Summary
    • DO's & DONT's
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  1. Create your wallet & backup
  2. Connecting to Wasabi Wallet

Air-Gapped Coldcard (optional)

You can also interact with the wallet generated by the Coldcard without ever connecting the device to a computer. In this case, your Coldcard is air-gapped.

In this step, we will be connecting the wallet generated in your Coldcard to Wasabi wallet to view your wallet balance, send and receive Bitcoin, without ever directly connecting your Coldcard to the Wasabi Wallet software.

Prerequisites:

  • You use a power-only cable to power up your Coldcard (you can use your computer as a power source since there is no data transfer between the devices);

  • You power up your Coldcard by using a wall outlet or battery pack.

  • A microSD card (32GB or less)

Steps:

We will be uploading the wallet file using the microSD card as to ensure that there is no direct connection between the Coldcard and other devices connected to the Internet.

  1. Insert the MicroSD card into your Coldcard

  2. With the Coldcard unlocked, select Advanced

  3. Select MircroSD card

  4. Select Export Wallet

  5. Select Wasabi Wallet

The wallet file named "new-wallet.json" will be written on the MicroSD card.

Steps for connecting to Wasabi Wallet:

  1. Insert the MicroSD card in your computer

  2. Open the Wasabi Wallet application on your computer

  3. Select the Add wallet from the left-hand menu

  4. Click the Import a wallet button

  5. Select the "new-wallet.json"file from the MicroSD card

  6. Click on Open.

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Last updated 2 years ago

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