Turn the printer on. The screen will display a progress bar as it updates.
The first and most critical step is preparing your SD card. The bootloader on the MKS Robin Nano v1.2 board is very particular. You'll need to format your card to with a 4096 byte allocation unit size . Using the wrong format is a common reason why a flash might fail.
The Two Trees Sapphire Pro is a sturdy, linear-rail CoreXY 3D printer. While it ships with a basic firmware, the “best” firmware depends on what you want: stability and ease (Marlin) or speed and advanced features (Klipper).
If you do not want to buy or configure a Raspberry Pi, a custom compile of is your best alternative. two trees sapphire pro firmware best
Community forks offer much cleaner, more responsive menu layouts for the stock MKS Robin Nano screen.
Uses an STM32F103 processor. It is a 32-bit board but has limited flash memory.
: Some community members have ported Marlin specifically to support the original MKS Robin Nano touchscreen interface, providing a more polished "factory-like" feel with open-source benefits. Key Benefits of Upgrading Two Trees Sapphire Pro, 3D printer custom firmware ⚙️ Turn the printer on
Do you have a available to use?
This guide covers selecting, installing, and optimizing the best firmware for the Two Trees Sapphire Pro (Sapphire Pro) to improve print quality, safety, and features. I assume you want a stable, feature-rich firmware that supports thermal protection, mesh bed leveling, linear advance, input shaper, and easy future updates — recommended choice: Marlin (latest stable 2.1.x or 2.2.x branch) or Klipper for performance-focused users. Below I provide step-by-step instructions for both options, plus configuration tips and troubleshooting.
I can provide the exact configuration files or step-by-step guides based on your hardware. Share public link The bootloader on the MKS Robin Nano v1
Before downloading, you must know your motherboard revision. Many Sapphire Pro units use the (v1.x, v2.x, or v3.x). Open your printer case.
: A popular choice for its user-friendly interface and comprehensive feature set. It's designed to work seamlessly with a wide range of 3D printers, including the Sapphire Pro.