Choose and select the .hex file you downloaded.
This is a great secondary source for older versions if you need to roll back. Key Improvements in Version 1.3.5 Anycubic Chiron Firmware 1.3.5 Download
You can access the firmware zip file directly here. Choose and select the
immediately after updating, as the new firmware may reset these parameters. Key Considerations immediately after updating, as the new firmware may
The file size is usually around 180–220 KB. If you see a file named Chiron_TRI_1.3.5.hex , “TRI” refers to the Tricolor model (some Chiron variants use the same firmware).
Finding official firmware for the Anycubic Chiron can be challenging because newer models like the Kobra series often dominate the main support pages. Version
The represents the most reliable, well-tested software version for this large-format workhorse. By updating, you eliminate Z-offset amnesia, false thermal runaway errors, and auto-leveling frustrations.