Since this is generic hardware, the firmware is usually hosted on community-driven repositories or manufacturer support pages:
A high-quality USB data cable and a Windows-based PC. 2. How to Download the K0706B Firmware Download K0706B Firmwar rar
A yellow progress bar will appear. Once finished, a green checkmark "Download OK" will pop up. 4. Troubleshooting Common Errors Since this is generic hardware, the firmware is