Always attempt to download from official channels first to avoid corrupted hex files: Visit the official .
Power on the printer. (Your computer should register a new COM port device). Step 2: Configure Cura Open Cura on your computer. Go to > Printer > Manage Printers . Select your Anycubic Chiron from the list. Click on Update Firmware on the right side of the menu. Step 3: Flash the Hex File Anycubic Chiron Firmware 1.3.5 Download
On the Chiron touch screen, navigate to > More > Reset . Always attempt to download from official channels first