Verify your extruder moves the correct amount of filament. Troubleshooting "Firmware Upd" Issues

Locate the binary file. For MKS boards, you must rename this file to exactly (or the name specified by your specific board version) for the bootloader to recognize it. Step 4: Flash the Motherboard

: Mark 100mm of filament, extrude 100mm, and adjust your step settings to ensure accurate material consumption.

Replace the default Configuration.h and Configuration_adv.h files with the Sapphire Pro files you downloaded.

The process involves placing a folder containing screen assets onto an SD card, inserting it into the screen's SD card slot, and powering on the printer. The screen will then automatically detect and install the new firmware. The specific required file structure is detailed in many community GitHub repositories, and it often involves placing an assets folder and a specific binary (e.g., Robin_nano35.bin ) on the SD card.

Before downloading any files, verify your machine's hardware version, as using the wrong firmware can brick your printer board. Motherboard: Most Sapphire Pro models use the MKS Robin Nano V1.2

This updates the printer’s logic, motion control, and touchscreen UI.

Custom firmware often includes more intuitive menus and allows for real-time adjustments of speed, flow rate, and acceleration.

A: While it is rare, using the wrong firmware file can cause the board to become unresponsive. Always ensure you are downloading firmware for the "MKS Robin Nano" STM32F103 board (not the SKR 1.4 or other boards). However, most community builds allow you to simply re-flash a working version to recover.

The motherboard requires a specific card format to recognize the update files. Use a microSD (TF) card formatted to

Two Trees Sapphire Pro Go to product viewer dialog for this item.

Use a FAT32-formatted microSD card (16GB or smaller recommended).

: Obtain the firmware files from an official or community source. You will typically need: Robin_nano35.bin (the main firmware binary). assets folder (contains UI icons and fonts for the screen).

Download the .bin firmware file. You can use official Two Trees firmware, but many users prefer customized versions for the MKS Robin Nano on GitHub.