Hi @tosandip :slight_smile: You don't need to enter dfu mode. If you have used OpenCR, you just update it using *board manager*. Please follow below link, it will help you http://emanual.robotis.com/docs/en/parts/controller/opencr10/#install-the-opencr-package-via-boards-manager Thanks Darby --- [Visit Topic](https://discourse.ros.org/t/turtlebot3-software-and-firmware-update-and-waffle-pi/3729/15) or reply to this email to respond. If you do not want to receive messages from ros-users please use the unsubscribe link below. If you use the one above, you will stop all of ros-users from receiving updates. ______________________________________________________________________________ ros-users mailing list ros-users@lists.ros.org http://lists.ros.org/mailman/listinfo/ros-users Unsubscribe: