The consensus among reviewers and hobbyists is that while the Sunlu T3 (Terminator 3) hardware is solid for its price, its stock firmware is a significant bottleneck.
The screen flickered. Went blue. Stayed blue. sunlu t3 firmware update better
Verify: Once the UI loads, go to "About Printer" to confirm the new version number. Post-Update Calibration The consensus among reviewers and hobbyists is that
due to micro-pauses during layer changes. Updated or custom versions (like community Marlin builds) optimize these transitions. Input Shaping : Moving to advanced firmware like due to micro-pauses during layer changes
Power the printer on; the screen may stay blank for several seconds while it flashes. Finalize Settings Once the UI loads, navigate to the menu to Restore Defaults Store Settings to clear old EEPROM data. Printables.com Pro-Tips for Better Prints
: For advanced features like 5x5 bed leveling and PID tuning, many users prefer Kaot93’s Custom Firmware on Printables Prepare the SD Card Format a MicroSD card to FAT32. Rename the file to firmware.bin (if it isn't already) and place it in the root directory. Flash the Printer Power off the printer. Insert the SD card into the front slot.
English 
Bahasa Indonesia 
Bahasa Melayu