Update Ledger Nano S firmware

The update to firmware version 1.4.2 introduces minor security as well as user experience improvements. Please check our blog post for full details on the changes included in this update.

  Check our update FAQ for troubleshooting tips in case you encounter any issue.

Before you start

  • Make sure you have downloaded and installed Ledger Live.
  • Ensure your 24-word recovery phrase is accessible if your device is already initialized.


A notification button will appear if a firmware update is available for your device.


  1. Click on Update.
  2. Click Continue once you've read the release notes.
  3. Your device will now display: update firmware, the version number and the Identifier.
    • Check that the first and last 4 characters of the Identifier shown in Ledger Live are the same as those on your Ledger device.

    • Press the right button on your device to install the firmware.
    • Enter your PIN code to confirm.
  4. Disconnect the USB cable when your device displays MCU firmware is outdated.
  5. Press the left button on your device and hold it while you reconnect the USB cable.
  6. Release the button once Bootloader is displayed. Wait until the confirmation window appears: Firmware updated.
  7. Re-install apps on your device.