Hello, gentlemen. Today, my printer froze mid-print. It didn’t respond to any commands. The screen went blank. I unplugged it, and now it’s refusing to work. I can hear strange clicking sounds coming from the motherboard, and all the lights on the printer are blinking.
A fast flashing blue LED on a Creality mainboard typically indicates a firmware failure (bricked board) or a bootloop, often caused by an incompatible firmware file or a corrupted SD card. It can also signal a short circuit in the system or a disconnected display ribbon cable.
Disconnect the display ribbon cable and reconnect is again an see what happens…