OnSpeed firmware

Flash a new device

Plug the device into your computer with USB, pick it below, and click install. This installs the latest OnSpeed firmware.

Pick the card that matches your exact board — V4P vs V4B and M5 Basic vs Core2 are not auto-detected.

Trouble connecting? If the device doesn't appear or install fails at "Connecting…", hold the BOOT button, tap RESET (or unplug/replug), keep holding BOOT for a second, then click Connect & install again.

Downloads & release notes

Download firmware to update a device you've already flashed, read the release notes, or roll back to an earlier version. Works in any browser.