The Arculus Firmware Update requires a desktop computer. Please visit this page on your PC or Mac to proceed with the update.
To update your Arculus firmware to the newly released OS, install the Desktop App on your Windows PC or Mac.
You may see this screen — follow these 2 steps to proceed safely
When Windows Defender SmartScreen appears, click the "More info" link in the blue dialog to reveal the "Run anyway" button.
Windows protected your PC
Microsoft Defender SmartScreen prevented an unrecognized app from starting. Running this app might put your PC at risk.
App: ArculusDesktopInstaller_x86.msi
Publisher: Arculus
New Software: SmartScreen shows this for newly released installers that haven't yet built a reputation score with Microsoft.
Cryptographically Signed: The installer is digitally signed by Arculus — your PC can verify its authenticity.
100% Safe: This is the official Arculus Desktop App installer, downloaded directly from our GitHub releases.
After clicking "More info", a "Run anyway" button will appear. Click it to start the installation.
Windows protected your PC
Microsoft Defender SmartScreen prevented an unrecognized app from starting.
App: ArculusDesktopInstaller_x86.msi
Publisher: Arculus
Click "Run anyway" to launch the Arculus Desktop App installer.
The installation takes less than 2 minutes. Your existing data will not be affected.
Once installed, open the app and follow the on-screen instructions to update your firmware to v2.4.1.
Keep your Arculus hardware secure and performing at its best. Install the Desktop App to update to the latest firmware with enhanced security, faster boot times, and new features.
This release addresses 14 security vulnerabilities and delivers significant performance improvements across all Arculus hardware.
14 critical CVEs patched. Improved secure element firmware with stronger key derivation and tamper detection.
40% faster boot time, 2× faster transaction signing, and reduced latency for NFC communications.
Upgraded to AES-256-GCM for all internal storage. 3× stronger key wrapping for cold storage assets.
99.9% update success rate with automatic rollback protection if the update process is interrupted.
Added support for 8 new blockchain networks including Solana, Avalanche, and Polygon zkEVM.
Redesigned onboarding flow, improved PIN entry feedback, and clearer transaction confirmation screens.
The Arculus Desktop App is the only way to update your hardware firmware. It securely communicates with your card via USB and manages the entire update process.
End-to-end encrypted communication between the app and your Arculus card.
The app automatically detects your current firmware version and downloads the correct update.
Every firmware update is cryptographically signed by Arculus before delivery to your device.
The entire firmware update process takes less than 10 minutes and requires no technical knowledge.
Click the download button and install the Arculus Desktop App on your Windows PC or Mac.
Plug your Arculus card into your computer using the included USB cable. The app will detect it automatically.
The app will download and verify the v2.4.1 firmware. Click "Update Now" to begin the installation.
Your Arculus card restarts with the new firmware. All your keys and assets remain safe and intact.
Download the Arculus Desktop App and update to v2.4.1 in under 10 minutes. Free for all Arculus users.
Version 2.4.1 · Windows 10/11 · macOS 12+ · Free update for all Arculus users
A detailed breakdown of every change, fix, and improvement in this release.
14 CVEs addressed including 3 critical vulnerabilities in the secure element communication protocol. All users are strongly advised to update immediately.
Boot time reduced by 40%. Transaction signing is now 2× faster. NFC response latency reduced from 120ms to 45ms for a noticeably snappier experience.
Added native support for Solana, Avalanche C-Chain, Polygon zkEVM, Base, Arbitrum One, Optimism, zkSync Era, and Starknet.