enabled. This is a critical safety feature that shuts the printer down if it detects the heater is out of control, preventing potential fires.
Always, always back up your original firmware. Before you flash anything new, use a tool like stm32flash (Linux) or STM32CubeProgrammer to read the existing .bin off your board. That file is your lifeline if a flash goes wrong. Happy printing. sunlu t3 firmware
Fixes issues where cooling fans might not activate properly during heating. enabled