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Update Keycard Shell online
29 Jan 2026

Regularly updating your Keycard Shell firmware and database keeps your device current with the latest features and security improvements.

note
To update your Keycard Shell in air-gapped mode, read Update Keycard Shell in air gapped mode.

In addition to your Keycard and Keycard Shell, you need a computer to access the update page ↗ and complete the update process.

Make sure you enable data transfer on your Keycard Shell before starting the update process.

note

If you use Linux, you must add the following udev rule to the file /etc/udev/rules.d/50-keycardshell.rules to grant the required permissions.

ACTION!="remove", KERNEL=="hidraw*", ATTRS{idVendor}=="1209", ATTRS{idProduct}=="21f7", MODE="0660", TAG+="uaccess"

  1. 1
    Insert your Keycard into Keycard Shell to power it on.
  2. 2
    Enter your Keycard PIN.
  3. 3
    Connect your Keycard Shell to your computer using a USB-C cable.
  4. 4
    Allow the connection request if you see a security alert from your computer.

The update page displays the latest available firmware and database versions. Your Keycard Shell may already be up to date on one or both of these versions.

  1. 1
    On your computer, open the update page at https://shell.keycard.tech/update. Before you continue, confirm the URL is exactly https://shell.keycard.tech/update.
  2. 2
    Click Update.
  3. 3
    In the shell.keycard.tech wants to connect to a HID device prompt window, select your Keycard Shell device and click Connect.
  4. 4
    The latest firmware and database version are automatically selected. Unselect the updates you don't want to install.

You need to confirm each update individually if you selected both.

  1. 1
    On the update web page, click Transfer to device to transfer the database update to your Keycard Shell.
  2. 2
    On your Keycard Shell, confirm the database update by pressing OK.
  3. 3
    Return to the update web page, click Transfer to device again to transfer the firmware update to your Keycard Shell.
  4. 4
    On your Keycard Shell, confirm the firmware update by pressing OK.
  5. 5
    Press OK again.
Last edited
29 Jan 2026