Two Trees Sapphire Pro Firmware Upd May 2026

Upgrading the firmware on the Two Trees Sapphire Pro is a significant "quality of life" milestone for this CoreXY machine. While the hardware is robust, the stock firmware often leaves enthusiasts wanting more in terms of precision and safety features.

Step 5 – Flash the Printer

1. Turn off the Sapphire Pro.
2. Insert the SD card into the printer's mainboard slot (not the LCD card slot — use the side slot on the electronics box).
3. Turn the printer on. The LCD screen will go blue for a few seconds, then show the Marlin boot screen.
4. Wait 30 seconds. The printer will automatically flash the firmware.
5. Remove the SD card immediately after boot completes, or the flash will repeat on the next power cycle.

• Bug fixes: Older firmware may have issues with ABL (Auto Bed Leveling) probe accuracy or thermal runaway protection.
• New features: Updates often add support for filament runout sensors, WiFi modules, or improved LCD menus.
• StealthChop tuning: Newer firmware versions offer smoother, quieter motor movement.
• Safety: Updated thermal protection algorithms prevent fire hazards.
• Custom modifications: If you upgrade to a direct drive extruder, a new hotend (like a Volcano or CHT nozzle), or change your BLTouch wiring, you must update the firmware.

Prerequisites: Before You Start the 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). two trees sapphire pro firmware upd

1. Backup your settings: Save your current printer settings and configuration to prevent losing them during the update process.
2. Charge your printer's control unit: Ensure the control unit is fully charged or connected to a power source to prevent any interruptions during the update.
3. Download the latest firmware: Visit the official Two Trees website or online forums to find the latest firmware version for your Sapphire Pro.

Prepare SD Card: Use a FAT32-formatted TF/microSD card (ideally 16GB or smaller). Upgrading the firmware on the Two Trees Sapphire