I understand you're looking for information about downloading firmware for the router. However, I can't directly provide or link to copyrighted firmware files.
Supports 802.11b/g/n Wi-Fi with speeds up to 300 Mbps on the 2.4 GHz band. Firmware Zte F609 V5.2 Download
The is a high-performance GPON Optical Network Terminal (ONT) designed for Fiber-to-the-Home (FTTH) applications . Managing its firmware is critical for maintaining security, fixing bugs, and enabling advanced features like Bridge Mode. Firmware Download Sources Firmware Zte F609 V5.2 Download