After a successful flash, you must reset your EEPROM settings:
Warning: Do not download firmware from random Facebook posts or unverified YouTube descriptions. Below are the current official and community-vetted sources.
To save you time, here is a curated, clickable list of verified sources:
| Source | Link | Best For | | :--- | :--- | :--- | | Official Two Trees | github.com/TwoTrees-3Dprinting/SapphirePro | Stock printers, warranty safe | | Knutwurst Community | github.com/Knutwurst/Marlin-2.1.x-TwoTrees-SapphirePro | Best performance, input shaping | | Makerbase MKS | github.com/makerbase-mks/MKS-Robin-Nano | Advanced users compiling source | | Two Trees Official Download Page | twotrees3d.com/pages/download | Direct from manufacturer |
Two Trees does not host firmware on a dedicated, easy-to-navigate wiki. Instead, they rely on cloud storage drives that are occasionally updated.
Why is it hard to find? Two Trees often updates their control boards (switching chipsets or screen connectors) without explicitly changing the model name. This means the firmware link might contain multiple versions (e.g., "V1.0," "V2.0," "Robin Nano"), and downloading the wrong one can brick your printer.
The Two Trees Sapphire Pro typically ships with an MKS Robin Nano V3 or V4 mainboard (STM32-based). Using the wrong firmware file can lead to:
Thus, having the correct firmware link is not just convenient—it’s essential for safety and print quality.
To implement this in the existing Sapphire Pro ecosystem (typically BTT TFT firmware based):
Two Trees Sapphire Pro (SP-3) generally uses the MKS Robin Nano Go to product viewer dialog for this item. two trees sapphire pro firmware link
motherboard, which can run several types of firmware including the stock closed-source firmware, Marlin, or Klipper. 1. Firmware Options and Direct Links
Depending on your technical skill and the features you need, you can choose from these primary firmware sources: Custom Marlin 2.0 (Stable & User-Friendly):
This version is a popular community fork optimized for the Sapphire Pro's stock hardware. It features a simplified interface and improved filament management. quentinDeroo GitHub Repository Key Features:
Fixes hotend overshoot, corrects bed dimensions, and supports multiple languages. Marlin 2.0.x with GUI (Best for Touchscreens):
For those who prefer a modern graphical interface, this fork includes the LittlevGL GUI. RolfZuckowskiUltras GitHub Repository Check the "Releases" section for pre-compiled Robin_nano35.bin Klipper (Advanced Users):
If you have a Raspberry Pi and want higher speeds and more control, Klipper is the recommended choice. Configuration File: Official Klipper Sapphire Pro Config Hardware Setup: Requires compiling for 28KiB bootloader 2. Update Procedure
The update process is largely standard across most versions of this printer's hardware:
Two Trees Sapphire Pro Firmware: The Ultimate Guide to Downloads and Updates
The Two Trees Sapphire Pro is a powerhouse in the budget CoreXY market, known for its linear rails and sturdy build. However, to truly unlock its potential—or simply to fix out-of-the-box bugs—you need the right firmware. After a successful flash, you must reset your
Whether you are looking for the original factory files or an upgraded Marlin configuration, finding a reliable Two Trees Sapphire Pro firmware link is the first step toward better print quality. 1. Official Factory Firmware
If you’ve encountered a glitch or want to reset your machine to its "out-of-the-box" state, the official firmware is your safest bet. Two Trees typically uses MKS Robin Nano boards for this model.
Official GitHub Repository: Two Trees maintains a GitHub presence where they host stock firmware versions. This is the most reliable source for the original .bin files and the mks_config.txt file required for screen customization.
What’s Included: Usually, the stock firmware link provides the compiled firmware, the UI folder (for the touch screen), and the configuration file. 2. Marlin 2.0 (Community Optimized)
Most Sapphire Pro owners eventually move away from stock firmware. Because the Sapphire Pro uses a CoreXY motion system, standard Marlin provides much better pressure advance and input shaping capabilities.
GitHub (Marlin Firmware): You can find pre-configured Marlin branches specifically for the Sapphire Pro. Users like mriscoc or the official Marlin Configurations repository often have folders dedicated to this machine.
Why Upgrade? Upgrading to Marlin via a community link allows you to enable features like Manual Mesh Bed Leveling, S-Curve Acceleration, and quieter motor movements. 3. Klipper Firmware for Sapphire Pro
If you want to push your Sapphire Pro to high speeds (150mm/s+), Klipper is the way to go.
The Link You Need: Look for the printer-twotrees-sapphire-pro-2019.cfg (or updated versions) on the official Klipper GitHub. Why is it hard to find
Note: This isn't a simple "flash and go" firmware. You will need a Raspberry Pi or an old laptop running Klipper to "talk" to the printer's mainboard. How to Flash Your Firmware
Once you’ve used a Two Trees Sapphire Pro firmware link to download your files, the process is straightforward:
Format your SD Card: Use a 16GB or smaller card, formatted to FAT32 with a 4096 allocation unit size.
Copy the Files: Place the Robin_nano35.bin (or similar name) and the assets folder onto the root of the SD card.
Update: Insert the card into the printer while it is off. Turn the printer on. You should see a progress bar on the screen indicating the update is live. Critical Safety Tip
Always check which version of the mainboard your printer has. Early Sapphire Pros used the MKS Robin Nano v1.1/1.2, while newer batches might use the v1.3 or v2.0. Using a firmware link meant for the wrong board version can result in a blank screen or unresponsive motors.
Which version of the Sapphire Pro are you currently running—the one with the original MKS Robin Nano v1.2 board or a newer upgrade?
Once you have the correct two trees sapphire pro firmware link and downloaded the .bin file, follow this protocol: