Click . If it shows "Device Connected," your driver is active. Do not actually attempt to update the firmware, as this can "brick" clone cables. Common Troubleshooting How to set up Techstream in 2026 for your Toyota or Lexus
Since the standard installer fails, you must manually extract the driver files to the correct system directory. Create target folder: Create the following directory path: mvci driver for x32 64 os multi version