Explore the process of upgrading a Sovol SV08 3D printer with a StealthChanger toolchanger mod in this comprehensive video tutorial. Learn how to convert to mainline Klipper firmware and improve the toolchanger wiring using a Bird's Nest Klipper USB hub. Follow step-by-step instructions on backing up configurations, removing the old eMMC, flashing new firmware, and setting up the Birds' Nest USB hub. Gain insights into hardware and software requirements, including the use of SSH clients and flashing tools. Discover how to connect an ST-Link programmer, back up MCU firmware, and flash bootloaders. By the end of this tutorial, acquire the knowledge to enhance your 3D printer's capabilities with improved wiring and updated firmware.