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Firmware Upgrade

Firmware upgrades mainly introduce new features, bug fixes, and support for new blockchains. You can upgrade via a MicroSD card or USB.

Upgrade via MicroSD Card

Preparation

  1. Keystone 3 Pro
  2. MicroSD card (a 32GB or 64GB MicroSD card is recommended) and MicroSD card reader
  3. Computer

Steps

  1. Check Battery: Make sure your Keystone wallet has at least 40% battery charge.

  2. Format MicroSD Card: MicroSD Card (FAT32 format, no larger than 512GB). How to format a MicroSD card to FAT32？

  3. Get Firmware: Go to the Keystone official website. Based on your current firmware version (you can check it by going to [···] in the top-right corner → [Device Settings]), select and download the latest applicable firmware file, “keystone3.bin”, then copy it to the root directory of your MicroSD card.

:::tip

Ensure the SD card holds only keystone3.bin, no other files. If the downloaded file name is automatically generated with a suffix like “keystone3(1).bin”, please rename it to “keystone3.bin” and do not change it to any other name.

:::

  1. Insert MicroSD Card: Place the MicroSD card with the firmware into the card slot on the left side of your Keystone wallet.
  2. Start Update: On the Keystone wallet home screen, tap the [···] icon in the upper-right corner, then go to [Device Settings] > [About] > [Firmware Update] > [Via MicroSD Card].

Update via USB

Preparation

  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 40% battery charge.

  3. Go to the official Firmware Update page.

  4. On Keystone: 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.

  5. On the official firmware update page, follow the provided instructions to update.