Serial port incorrect or baud rate mismatch. Fix: In Configuration.h , set #define SERIAL_PORT 2 and #define BAUDRATE 115200 or 250000 .
This guide was last updated on May 28, 2026, based on available documentation. Share public link
Open the bottom cover of your printer and locate the mainboard. The version number will be printed on the board. two trees sapphire pro firmware upd
A: Yes, but you must compile for your specific board. The config structure changed in Marlin 2.0.9+, so compare your old Configuration.h settings (like bed size, probe offsets) with the new template.
Some common reasons to go for the update include: Serial port incorrect or baud rate mismatch
Ensure the firmware file is named exactly Robin_nano35.bin (or as specified for your version) and that the assets folder is in the root directory if you are updating the UI.
Copy this file to your SD card and follow the standard flashing procedure described above. Share public link Open the bottom cover of
The Two Trees Sapphire Pro is a beast of a CoreXY machine, beloved for its rigid frame and linear rails. However, to truly unlock its potential—or just to fix some out-of-the-box quirks—you’ll eventually need to dive into a firmware update.
After an update, you may need to re-calibrate your printer’s PID, E-steps, and Z-offset. Advanced: Flashing the Screen Firmware