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Firmware Update via USB or MicroSD Card

Firmware updates are important as they bring new features, bug fixes, and support for new blockchains.

Upgrading your Keystone wallet is easy, and here is the way to update via MicroSD Card.

Update via MicroSD card

What you'll need

  1. Keystone 3 Pro
  2. MicroSD card and MicroSD card reader (MicroSD cards with a capacity of 32GB or 64GB are recommended)
  3. Computer

Steps

  1. Check Battery: Make sure your Keystone wallet has at least 20% battery charge.
  2. Format MicroSD Card: MicroSD card (default FAT32 format, no larger than 512GB). How to format a MicroSD card to FAT32？
  3. Get Firmware:
  4. Please visit the official Keystone website to download the latest firmware, whose standard file name is keystone3.bin.
  5. Copy the downloaded firmware file to the root directory of your MicroSD card.
  6. Critical Naming Rules:
  • Ensure the file name on the MicroSD card is keystone3.bin exactly.
  • If the downloaded file has an auto-generated duplicate suffix like keystone3 (1).bin, rename it to the standard name before installation.
  • Do not rename the file to any other name, otherwise the device will not recognize it and the firmware installation will fail.
  1. Insert MicroSD Card: Place the MicroSD card with the firmware into your Keystone wallet.
  2. Start Update: Tap the [···] icon at the top right of the main page > [Device Settings] > [System Settings] > [About] > [Firmware Update].

Important Notes​

  • V2.0.4 is a critical security update released in March 2025. All devices with a version < 2.0.4 must complete this transitional upgrade before proceeding to install the latest firmware.
  • "[Your Device Version]" should be selected based on your device model (e.g., Multi-Coin Edition, BTC Edition, etc.), not arbitrarily according to personal needs.
    • First, check if your current firmware version is 2.0.4 or above: if yes, select “Latest Firmware Download” directly to download and update.

  • If your current firmware version is less than 2.0.4, proceed to the following sub-judgment:
    • If your current version is less than 2.0.0: Click the [Download [Corresponding Version] 2.0.4] button on the left (select based on your device type, e.g., Multi-Coin Edition, BTC Edition, etc.) to complete the security update. Then click [Latest Firmware Download] to obtain and install the latest full firmware, finishing the entire upgrade process.

  • If your current version is greater than or equal to 2.0.0 and less than 2.0.4: Click the [Download [Corresponding Version] 2.0.4] button on the right (select based on your device type, e.g., Multi-Coin Edition, BTC Edition, etc.) to complete the security update. Then click [Latest Firmware Download] to obtain and install the latest full firmware, finishing the entire upgrade process.

  1. Tap [Via MicroSD Card] and access the [Update] option on your Keystone wallet, thenenter your passcode to initiate the update process.

That's it! Your Keystone wallet firmware will be updated.

Update via USB Cable

What you'll need

  1. Keystone 3 Pro
  2. USB Cable
  3. Computer

Steps

  1. 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.
  2. Check Battery: Ensure your Keystone wallet has at least 20% battery charge.
  3. Connect: Tap the [···] icon at the top right of the main page > [Device Settings] > [System Settings] > [About] > [Firmware Update]. 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.

  1. Update: Open your computer's web browser and go to the Firmware Update page.
  2. Install: On the update page, click the "Install Update" button and follow the provided instructions to install the latest firmware.

That's it! Your Keystone wallet firmware will be updated.