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: Check the Anycubic Firmware & Software page for the latest updates, though version 1.3.0 is more common there.

✅ Highly recommended for all Chiron owners.

Addresses UI freezes and SD card reading errors found in earlier factory releases. Download and Prerequisites To install this firmware, you generally need the following: Firmware File: Typically a file (e.g., Chiron_v1.3.5_Repack.hex Connection: A USB-B cable to connect the printer to a PC. Cura (Firmware Update Tool) or PrusaSlicer. Installation Steps Backup Settings: Record your current E-steps and PID values. Connect Printer: Plug the Chiron into your PC via USB. Open Cura: Settings > Printer > Manage Printers Update Firmware: Update Firmware and choose Upload Custom Firmware Select File: Choose the downloaded 1.3.5 Repack Reset EEPROM: After flashing, send the followed by G-code commands to initialize the new settings. Important Considerations Calibration is Required: