Some older mainboard versions require the .bin file name to be tt_plus.bin . Check your board’s included readme file.
: For advanced users seeking high speeds, Klipper offloads calculations to a host like a Raspberry Pi. How to Update Your Firmware Sapphire Pro two trees sapphire pro firmware upd
Insert the card into the powered-off printer. Turn it on, and you should see a progress bar. Do not turn off the power until it reaches the home screen. Potential Hurdles Some older mainboard versions require the
: Use a standard Micro-SD card (16GB or smaller is recommended for compatibility). How to Update Your Firmware Sapphire Pro Insert
The Sapphire Pro is a "speed" printer (CoreXY). The default PID values (how the printer maintains temperature) can be unstable at high speeds. Updated firmware allows for PID Autotune to be saved permanently, eliminating temperature fluctuations that cause print defects.