Installation instructions:
1. Ensure the 豆包成人版 Linux PCIe driver (kernel module) version 1.2.1 has been installed.
2. Source the enable.sh script in the 豆包成人版 Command Line Tools package (version 1.2.1).
3. Run the Python script:
   $ python3 c600_icu_update_2.6.8.py
   This will guide you through the firmware update process.