TPM 2.0 Firmware Upgrade Guide

Prerequisite: Before beginning, ensure you’ve backed up crucial data. You should also know how to access your BIOS settings.

Step-by-Step Instructions:

1. Download Firmware:
   • Navigate to Authikey.com/download/.
   
   • Locate and download the file named authikey3353.zip.
2. Extract Files:
   • Once the download is complete, locate the authikey3353.zip file.
   
   • Extract the contents, specifically the 3353exe folder, to your desktop.
   
3. Modify BIOS Settings:
   • Restart your computer and access your BIOS settings.
   • Find the Trusted Computing option and disable it.
   
4. Boot into Windows 11
   • Save the changes made in the BIOS and reboot your computer to Windows 11.
5. Prepare for Update:
   • Locate and open the 3353exe folder on your desktop.
6. Initiate Firmware Update:
   • Find the update.bat file.
   • Right-click on it and choose Run as administrator.
   
7. Firmware Update Process:
   • A dialog box will surface.
   
   • Allow the update to run.
   
   • A pop-up window will appear, indicating the Infineon SLB9665 firmware update process.
   
   • Wait for the update to complete.
   
8. Troubleshooting:
   • If the update does not initiate successfully, verify that:
     • Trusted Computing remains disabled in the BIOS.
     • You executed update.bat with administrative rights.
9. Reconfigure BIOS Settings:
   • Reboot your computer and re-enter the BIOS settings.
   • Enable Trusted Computing.
   • Save and reboot, then access the BIOS once more to verify Security Device Support is enabled and details are visible.
   
   • Save any changes and restart, launching into Windows 11.
10. Verification:
    • Once you’re back in Windows 11, open the Settings app.
    • Click on Privacy & security.
    • Scroll down to the Device security section and click on Security processor.
    • Under TPM status, make sure that the status is Attestation Ready.
    

Important Reminders:

• Always connect your computer to a dependable power source during firmware updates to avoid potential interruptions.
• Post-upgrade, you may delete the 3353exe folder from your desktop.