Keep your CryptKeeper hardware wallet secure with the latest firmware
Regular firmware updates are crucial for maintaining the security and functionality of your hardware wallet.
At Evocrafty, we continuously work to enhance our firmware to address emerging security concerns, add support for new cryptocurrencies, and improve the user experience. Each update undergoes rigorous security testing and is cryptographically signed to ensure authenticity.
By keeping your device updated with the latest firmware, you ensure that your hardware wallet maintains its security edge against evolving threats while gaining access to new features and supported assets.
Follow these steps to safely update your firmware
Important preparations to ensure a smooth update process:
Ensure you have access to your 24-word recovery phrase before updating. While updates are designed to preserve your data, having your backup available is always recommended.
For battery-powered models (Advanced and Ultimate), ensure your device has at least 50% battery charge before starting the update.
Our firmware updates are performed through our official desktop application. Download the latest version from our website for your operating system.
Ensure you have a stable internet connection and a reliable USB cable for the update process.
The update process typically takes 5-10 minutes. Don't disconnect your device during this time.
Step-by-step instructions for updating your firmware:
Connect your CryptKeeper device to your computer using the provided USB cable.
Open the CryptKeeper Desktop App and wait for it to recognize your device.
Click on the "Settings" tab in the app, then select "Firmware" from the menu.
Click "Check for Updates" to see if a new firmware version is available. If available, click "Update Now".
Your device will display information about the update. Verify the firmware version and cryptographic signature, then confirm the update on your device.
The update will download and install automatically. Your device will restart when the process is complete.
After restarting, check the firmware version on your device to confirm the update was successful.
If you encounter persistent issues with the firmware update process, please contact our support team for assistance:
+1 (916) 214-4525
Release notes and details for CryptKeeper firmware updates
Released: September 10, 2025
Basic (v2.0+) Advanced Ultimate
This release focuses on security enhancements and adds support for several new cryptocurrencies.
Released: July 15, 2025
Basic (v2.0+) Advanced Ultimate
Major feature update with performance improvements and UI enhancements.
Released: May 22, 2025
Basic (v2.0+) Advanced Ultimate
Security-focused update with critical fixes and cryptocurrency additions.
Released: March 8, 2025
Basic (v2.0+) Advanced Ultimate
Major update with enhanced security features and expanded cryptocurrency support.
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We typically release major firmware updates every 3-4 months, with minor security patches as needed. Our update schedule balances the need for new features and security enhancements with thorough testing and validation.
Critical security patches may be released more urgently when necessary to address any discovered vulnerabilities.
No, updating your firmware will not erase your cryptocurrency. Your private keys remain securely stored on the device during the update process.
However, as a best practice, we always recommend ensuring you have your recovery seed phrase accessible before performing any firmware update, just as a precautionary measure.
Remember that your cryptocurrencies are not actually stored on the device itself – the hardware wallet stores the private keys that provide access to your assets on the blockchain.
While updating isn't strictly mandatory, we strongly recommend keeping your firmware up to date for several important reasons:
In some cases, certain cryptocurrency applications or features may require a minimum firmware version to function properly.
CryptKeeper devices are designed with a failsafe update mechanism that prevents "bricking" if an update is interrupted. If your update process fails or is interrupted:
Even in the unlikely event of a complete failure, your recovery seed allows you to restore all your accounts on a new device, which is why keeping your recovery seed secure and accessible is so important.
CryptKeeper firmware is cryptographically signed using our master signing keys, and your device automatically verifies this signature before installing any update. This ensures that only authentic CryptKeeper firmware can be installed on your device.
For additional verification:
If you're particularly security-conscious, you can manually verify the signature using our published public keys before proceeding with the update.