: Note your current firmware version in the printer's "About" menu to confirm the update later. 2. Download Firmware
: Community members have archived the official firmware on GitHub and created custom Marlin versions that fix issues like fan mapping or bed leveling. Prepare the microSD Card : Sunlu T3 Firmware Update
: Updating firmware often resets your Z-offset. You will need to re-level your bed and re-calibrate your Z-offset immediately after the update to avoid nozzle crashes. : Note your current firmware version in the
: Corrects the error where the hotend cooling fan fails to turn on during stationary heating. Sunlu T3 Firmware Update