Anycubic Chiron Firmware 1.3.5 Hot! Download May 2026

Anycubic Chiron Firmware 1.3.5 is a support-provided maintenance update designed to fix critical operational issues and enable compatibility with updated TFT screens. While often necessary for restoring functionality, user reports indicate potential risks, including Z-axis homing failures and inconsistent bed leveling. For guidance on downloading and installing the software, you can watch this YouTube video.

Anycubic Chiron Firmware 1.3.5: Essential Guide and Download

Updating your Anycubic Chiron to firmware version 1.3.5 is a critical step for improving print reliability and ensuring your machine runs with the latest bug fixes and safety features. This version is specifically designed for the Chiron’s massive build volume and stock hardware configuration. Why Update to Firmware 1.3.5?

Firmware v1.3.5 serves as a stable baseline for the Chiron's Trigorilla motherboard. Key improvements typically include:

Thermal Runaway Protection: Enhanced safety protocols to prevent overheating.

UI Bug Fixes: Smoother navigation on the touchscreen interface. Anycubic Chiron Firmware 1.3.5 Download

Leveling Accuracy: Refined handling of the 25-point auto-leveling mesh data. Where to Download

You should always source firmware directly from the manufacturer to avoid bricking your machine with incompatible code. Official Source: Anycubic Official Support & Downloads

File Format: Look for a .hex file typically titled Anycubic_Chiron_V1.3.5.hex. How to Install the Firmware

To flash the firmware, you will need a USB cable and a computer with Cura or PrusaSlicer installed.

Connect: Link your PC to the Anycubic Chiron via the USB port. Anycubic Chiron Firmware 1

Prepare Cura: Open Cura and go to Settings > Printer > Manage Printers.

Update: Select your Chiron profile and click Update Firmware.

Upload: Choose "Upload Custom Firmware" and select the downloaded .hex file.

Wait: Do not disconnect the cable or power off the printer until the progress bar completes and the printer reboots. Post-Update Calibration

After updating to 1.3.5, it is highly recommended to perform these three steps: Heat the nozzle to 200°C and the bed to 60°C

PID Tuning: Recalibrate your nozzle and bed heating to match the new firmware’s logic.

Re-Level: Clear your old mesh and run the 25-point "Probe" cycle again.

E-Step Check: Verify your extruder calibration to ensure flow remains accurate.

Note: If you have upgraded your Chiron with a BLTouch or a different mainboard (like a BigTreeTech SKR), this stock firmware is not compatible. You will need a custom Marlin build instead.

1. Manual Leveling (The Foundation)

  • Heat the nozzle to 200°C and the bed to 60°C.
  • Use the “Manual Leveling” feature under Prepare > Level. Move the nozzle to all four corners and the center, using a standard piece of paper (slight drag).

Step-by-Step:

  1. Download and extract the 1.3.5 .hex file.
  2. Install Arduino IDE (if using that method) or use Cura’s “Machine Settings” → “Upload Firmware” (recommended for simplicity).
  3. Connect the Chiron via USB – ensure no SD card is inserted.
  4. Select the correct COM port (check Windows Device Manager under Ports).
  5. Flash the firmware using:
    • Cura method: Tools → Firmware Uploader → Select .hex → Upload.
    • Arduino method: File → Examples → ArduinoISP → upload as programmer.
  6. Wait for the progress bar to complete (approx. 30 seconds). The LCD screen will reboot.
  7. Perform an EEPROM reset (important!):
    On the Chiron’s touchscreen: Settings → Advanced → Reset EEPROM. Then power cycle the printer.

Step 1: Prepare the SD Card

  • Format the microSD card to FAT32.
  • Extract the downloaded ZIP file.
  • Copy the .bin file (e.g., Chiron_V1.3.5.bin) to the root directory of the SD card. Do not place it inside any folder.

Frequently Asked Questions (FAQ)

Should You Stick with Stock 1.3.5 or Switch to Marlin Community Firmware?

This is a crucial fork in the road. The official 1.3.5 firmware is stable, but some advanced users prefer community builds (e.g., Knutwurst’s Marlin 2.x for Chiron).

Where to download

  • Always download firmware only from official Anycubic resources (official website, support portal, or vendor-provided links) or well-known community firmware repositories that explicitly reference the Chiron and the file’s target board. Verify checksums (MD5/SHA256) when available.

5. LCD Touchscreen Responsiveness

The 4.3-inch touchscreen now feels snappier. Menu navigation is smoother, and real-time temperature readouts update with less lag.