Sunlu T3 Firmware - Update

you are trying to fix with this update (e.g., bed leveling, thermal runaway, screen freeze)?

Windows, Mac, or Linux to download and transfer the files. Step-by-Step Sunlu T3 Firmware Flashing Guide

: It is highly recommended to select "Restore Defaults" and then "Store Settings" (EEPROM) after flashing to ensure old settings do not conflict with the new firmware. Key Improvements in Updated/Custom Firmware Sunlu T3 Firmware Update

Visit the official Sunlu website's download section. This is the safest route but rarely includes advanced features like Input Shaping.

Modern firmware acts as the "brain" of your printer, and the stock T3 often ships with older versions that lack certain optimizations. you are trying to fix with this update (e

Re-calculate your BLTouch Z-offset using a piece of paper to ensure the nozzle height is correct, as recommended in this T3 settings guide .

Download the appropriate firmware .bin file for your T3 config. Re-calculate your BLTouch Z-offset using a piece of

The Sunlu 3D Printer User Group on Facebook is very active. The community moderators often pin the latest firmware files for the T3, S8, and S9 in the "Files" section or "Announcements."

The motherboard is very picky about how the file is read.