Sunlu T3 Firmware Repack 💫

Sunlu T3 Firmware: Comprehensive Guide & Technical Reference

Sunlu has released iterative updates for the T3 series to address user feedback.

Download the Latest Firmware: Visit the Sunlu website or online forums to download the latest firmware version.
Prepare the Firmware Files: Extract the firmware files and prepare them for upload to the printer.
Connect to the Printer: Connect to the printer using a USB cable or through the network.
Update the Firmware: Use a firmware update tool, such as the Sunlu T3 firmware update software, to upload the new firmware files to the printer.

Known Issues

: Jam detection in v3.x often triggers false positives; many users recommend disabling it in the settings menu. Custom & Community Firmware sunlu t3 firmware

Error 1: "Thermal Runaway" on first boot after flash

Go to Control > Temperature > PID Autotune.
Set to 200°C for the nozzle and 60°C for the bed. Save to EEPROM.

: Check the "About Printer" menu to confirm the version has changed. Are you looking to enable a specific feature (like a BLTouch) or just trying to with the current stock version? Custom Firmware for SUNLU T3 by Kaot93 - Printables.com Sunlu T3 Firmware: Comprehensive Guide & Technical Reference

Cause: Corrupted SD card or power supply brown-out.
Fix: Do not use the cheap SD card included with the printer. Use a name-brand 8GB card. Also, ensure your power_loss_recovery is turned OFF in the menu (it causes stuttering on T3's CPU).

Because SUNLU’s official support pages can sometimes be difficult to navigate, the community has stepped up: Official & Archived Marlin: You can find the Official SUNLU T3 Firmware archive on GitHub , which allows you to fork and modify the code yourself. Marlin vs. Klipper: Most users stick with Download the Latest Firmware : Visit the Sunlu