How do I update the firmware?
EP-40tutorialguide
Connect your EP-40 to a computer using a USB-C cable, then visit teenage.engineering/apps/update and follow the on-screen instructions.
Requirements
Make sure your computer can provide at least 1A of power through the USB-C connection. The update process will guide you through each step automatically.
What Gets Updated
Firmware updates can add new features, fix bugs, or improve performance. Your projects, samples, and settings are preserved during the update process.
Backup Recommendation
While updates typically don't erase user content, it's good practice to back up your samples using the EP Sample Tool before updating, just in case.