Open the bottom panel of your printer and check the version printed on the motherboard (e.g., MKS Robin Nano V1.2). This ensures you download the correct firmware build. Step 2: Prepare the SD Card Use a high-quality MicroSD card (ideally 8GB or 16GB).
Use a MicroSD card (preferably 8GB or smaller, or a 16GB card formatted to FAT32).
If you own a —the upgraded, linear-rail version of the popular Sapphire S—you know it’s a powerhouse of a CoreXY 3D printer. However, like any open-source machine, its performance heavily depends on the firmware. Whether you are upgrading to a better version of Marlin, enabling a BLTouch, or recovering a bricked board, finding the correct Two Trees Sapphire Pro firmware link is critical.
By using the correct and following the installation instructions, you can significantly improve the functionality, speed, and printing stability of your device in 2026. two trees sapphire pro firmware link
A popular fork of Marlin 2.0 pre-configured for the Sapphire Pro's stock hardware and MKS Robin Nano board. RolfZuckowskiUltras GitHub Repository
Two Trees uses different motherboards depending on the manufacturing batch of your Sapphire Pro. Most iterations feature the (typically V1.2 or V1.3) board.
Ultimate Guide to Two Trees Sapphire Pro Firmware: Downloads, Updates, and Configurations Open the bottom panel of your printer and
Here is your roadmap to the best firmware options and how to install them. 1. The "Easy" Choice: Custom Community Marlin
Robin_nano35.bin (Ensure the name matches your specific board version requirement). mks_config.txt (If modifying parameters). mks_pic folder (For UI assets). Step 3: Flash the Printer Turn off the Sapphire Pro.
Original MKS Robin Nano configuration files, pre-compiled .bin files, and stock UI assets. 2. Community Marlin Firmware (Recommended) Use a MicroSD card (preferably 8GB or smaller,
Since the Sapphire Pro does not have built-in WiFi, the "Link" aspect must be handled via a companion configuration file on the SD card.
For stock or Marlin-based MKS Robin firmware, copy the following to the root folder of the SD card:
The file name might be incorrect for your specific board version, or the SD card is not formatted to FAT32 with a 4096-byte cluster size. Double-check your mainboard version and rename the .bin file accordingly.
For advanced users wanting maximum speed and input shaping to eliminate ghosting, Klipper is the ultimate upgrade. Klipper Firmware GitHub Repository
Do not power off during the flashing process. It will corrupt the bootloader.