Sunlu T3 Firmware Jun 2026

: 5x5 point grid instead of the stock version.

// BLTouch (if used) #define BLTOUCH #define AUTO_BED_LEVELING_BILINEAR sunlu t3 firmware

: Stock firmware often has the extruder cooling fan mismapped, meaning it only runs when motors are active. Updated configurations ensure it runs whenever the hotend is hot, preventing heat creep. : 5x5 point grid instead of the stock version

If you own a Sunlu T3, you have likely searched for "Sunlu T3 firmware" out of frustration—perhaps your BLTouch isn't working, the screen is frozen, or you want to unlock advanced features like input shaping. This guide provides a deep dive into everything you need to know about the T3’s brain, from stock recovery to custom Marlin builds. the screen is frozen