Keystone Zashi User Guide

Zashi x Keystone Hardware Wallet Integration

This integration marks a significant evolution in Zcash usability by enabling cold storage of shielded ZEC. The Zcash community has faced setbacks with other hardware wallet platforms in the past, but Keystone emerged as a collaborative partner willing to push boundaries and innovate alongside the Electric Coin Company. The Keystone team received a ZCG grant to fuel their side of the work.

Preparation

1. Order & Receive Your Keystone 3 Pro or Keystone 3

2. Battery Level: Ensure your keystone device has a battery level above 20%.

3. USB Cable or SD Card:

   • USB cable for firmware Update (included).
   • Micro SD card (under 1 TB) for upgrades (purchase separately).

4. Access to Keystones official website for Verification and Firmware Update.

5. Zashi app setup on your mobile device.

Step by Step Guide(Keystone Device)

• Choose Your Language

• Device Verification(via QR): Device Verification is crucial to detect potential contamination during transportation, prevent supply chain attacks, and ensure the safety of installed firmware.

  • Visit the Device Verification page on the Keystone website.
  • Click on Scan QR Code on the official website.
  • Use your Keystone camera to scan the QR code shown on the website.
  • A verification code will appear on your Keystone screen.
  • Enter this code on the website to complete the verification process.

• Firmware Update:

  • Update via MicroSD card
    • Make sure your Keystone wallet has at least 20% battery charge.
    • Insert the SD card into your computer and format it as FAT32.
    • Download the latest Cypherpunk firmware version from the Keystone Firmware Update page and save the keystone3.bin file to the root of your MicroSD card.
    • Place the SD card with the firmware into your Keystone wallet.
    • Access the "Upgrade" option on your Keystone wallet, then follow the on-screen instructions to initiate the update process.
  • Update via USB Cable
    • If your firmware version is below 1.0.4, you will need to perform the initial update using a MicroSD card before you can proceed with USB updates.
    • Ensure your Keystone wallet has at least 20% battery charge.
    • Tap on via USB and use the USB cable to connect your Keystone wallet to your computer. Tap [Approve] to grant your Keystone wallet USB access, as it might otherwise only allow charging.
    • Open your computers web browser and go to the Keystone Firmware Update page
    • On the update page, click the Install Update button and follow the provided instructions to install the latest firmware.

• Create Wallet:

  • Secure Password: Choose a strong PIN or password to protect your wallet.
  • Name Your Wallet (Optional): Optionally, give your wallet a name for easy identification or skip this step.
  • Select Create New Wallet if you are setting up a wallet for the first time.
  • Your device will generate a 24 word seed phrase.
  • Write down this seed phrase and store it securely.
  • Confirm the seed phrase by verifying the words in the correct order as displayed on the screen.

• Connect Zashi + Keystone Wallet:

  • On the Keystone device: Tap … on the main page
  • Tap Connect Software Wallet and choose Zashi. The QR code for connection to Zashi will appear.
  • In Zashi App: Tap zashi dropdown (top left of screen)
  • Tap Connect Hardware Wallet
  • Tap Ready to Scan
  • Scan the QR displayed on Keystone Device
  • In Zashi App: Confirm Keystone Wallet Account by tapping displayed account
  • Tap Connect on bottom of screen

Connect Keystone Hardware Wallet to Zashi (Video)

Sign an Outgoing Transaction with Keystone (Video)

Enjoy Cold Storage of Shielded ZEC w/ Zashi + Keystone