How to update Ledger Nano X firmware safely? (Ledger Live Guide)

Preparation Steps Before Firmware Update

1. Ensure your Ledger Nano X battery is charged above 30% to prevent unexpected shutdowns during the update process.

2. Download and install the latest version of Ledger Live desktop application from the official ledger.com website — never use third-party sources.

3. Close all other cryptocurrency applications, browser extensions, or wallet interfaces that might interfere with USB communication.

4. Connect your device using the original USB-C cable and verify that Ledger Live recognizes it under the “Manager” tab.

5. Confirm you have written down and securely stored your 24-word recovery phrase — firmware updates do not erase it, but physical device failure remains a risk.

Initiating the Firmware Update via Ledger Live

1. Open Ledger Live and navigate to the “Manager” section on the left sidebar.

2. Click the “Update” button next to the firmware version number displayed under your device name.

3. Ledger Live will automatically check for the latest firmware version compatible with your Nano X model and download it in the background.

4. A confirmation pop-up will appear — read all warnings carefully, especially those regarding Bluetooth deactivation during the process.

5. Press both side buttons simultaneously on your Nano X when prompted to enter bootloader mode; the screen will display “Bootloader” and “Loading…”.

Execution and Device-Side Verification

1. Ledger Live begins transferring the new firmware binary — this phase takes approximately 2–4 minutes and must not be interrupted.

2. Your device screen will show progress bars and status messages such as “Installing”, “Verifying signature”, and “Applying update”.

3. Once installation completes, the Nano X reboots automatically and displays the welcome screen with the updated firmware version number.

4. Ledger Live confirms success with a green checkmark and prompts you to restart the application to sync with the new firmware.

5. Reopen Ledger Live and go to Settings > Security to verify the exact firmware version matches the one published in Ledger’s official security advisories.

Post-Update Validation and Recovery Check

1. Reconnect your Nano X and open each installed app (e.g., Bitcoin, Ethereum) to confirm they launch without error.

2. Perform a small test transaction to an address you control — verify signing works correctly by checking the transaction details on-device before approval.

3. In Ledger Live, go to Accounts and refresh balances — ensure all previously imported accounts reappear with correct balances.

4. Manually compare your device’s firmware hash against the SHA-256 checksum published on Ledger’s GitHub repository for that release.

5. If any app fails to open or balance mismatches occur, disconnect and reconnect while holding both buttons for 10 seconds to force a soft reset.

Frequently Asked Questions

Q: Can I update Ledger Nano X firmware without Ledger Live?A: No. Ledger discontinued standalone firmware update tools. Ledger Live is the only supported and audited method for Nano X firmware upgrades.

Q: What happens if my computer crashes mid-update?A: The Nano X has dual firmware slots. If the update fails, it boots from the previous stable version — no data loss occurs, and you may retry immediately.

Q: Does updating firmware reset my PIN or wipe apps?A: Neither. Firmware updates preserve your PIN, recovery phrase, and all installed apps. Only the underlying OS layer is replaced.

Q: Why does Ledger Live require Bluetooth to be disabled during update?A: Bluetooth interferes with the USB DFU (Device Firmware Upgrade) protocol handshake. Disabling it prevents communication timeouts and ensures reliable packet transmission.