This guide covers everything you need to know about the Sapphire Pro firmware, including the difference between stock and custom firmware, how to find your current version, and the step-by-step update process.
mks_config.txt (This is where you can live-edit settings like steps-per-mm or inverted axes). The assets folder (containing the UI images). Step B: Flash the Machine Turn off your printer. two trees sapphire pro firmware upd
Do not skip this section. A failed firmware update can brick your printer's mainboard (though usually recoverable via bootloader). This guide covers everything you need to know
is a critical safety feature. Many early Sapphire Pro units shipped with this disabled. If your printer keeps heating even when the target temperature is reached, or if it heats without stopping when the nozzle is cold, you have a hardware issue. **Do not disable Thermal Runaway in the firmware to "fix" this; Step B: Flash the Machine Turn off your printer
It is worth noting that Two Trees (and their parent company, BIQU) have released newer mainboards (like the BIQU SKR series) that run circles around the stock Sapphire Pro board.
: Use a small-capacity (typically 8GB–32GB) Micro-SD card formatted to Download Firmware : Obtain the correct file and any associated UI : Available via the TwoTrees Official Wiki Official Website Community Custom : Popular custom Marlin builds, such as those by quentinDeroo , offer improved GUIs and bug fixes. Copy Files : Rename your firmware file to Robin_nano35.bin
Also set your thermistor type (usually #define TEMP_SENSOR_BED 1 for 100k NTC).
