Ensure the downloaded file is named conventionally (typically firmware.bin or a variant thereof). If the file is zipped, it must be extracted. The printer will not read a .zip file as a valid firmware update.
| Issue | Probable Cause | Solution |
| :--- | :--- | :--- |
| Screen Stuck on Logo | Corrupt firmware file or SD card error. | Reformat SD card to FAT32 (Allocation size 4096 bytes) and re-copy the .bin file. |
| "No TF Card" Error | Card unreadable or incompatible. | Try a different SD card (smaller capacity, e.g., 8GB or 16GB). |
| Version Number Unchanged | Old firmware cached. | Ensure the file is named firmware.bin and contains the new binary data. |
| Thermal Runaway Error | PID values mismatched. | Run PID Autotune. If persistent, check thermistor cabling for loose connections. | Anycubic Chiron Firmware 1.3.5 Download
The 4.3-inch touchscreen now feels snappier. Menu navigation is smoother, and real-time temperature readouts update with less lag. | Issue | Probable Cause | Solution |