The Two Trees Sapphire Pro 3D printer typically runs on open-source Marlin firmware or, for some versions, Klipper (via a separate host). There is no single universal "Sapphire Pro" firmware file; the correct firmware depends on the mainboard version (e.g., MKS Robin Nano V1.3/V2, MKS Gen L, or stock Two Trees board) and the installed display (stock LCD or touch screen).
Even with the perfect Two Trees Sapphire Pro firmware link, you may encounter issues unique to your revision. Join these communities: two trees sapphire pro firmware link
Before posting, clearly state:
If you need a more recent Marlin than Two Trees provides: The Two Trees Sapphire Pro 3D printer typically
This build includes:
Before flashing anything new, use a USB to TTL serial adapter (like FTDI232) to read and save your current firmware via stm32flash command line. If the new firmware link fails, you can revert to the exact factory state. Before posting, clearly state: If you need a
For advanced users, the community firmware by Knutwurst (available on GitHub) is superior to the official version. It includes bug fixes for the Sapphire Pro’s unique dual-Z motors and heated bed PID.