Updating the firmware on your ZTE F460 is a double-edged sword. On one hand, the right update can resurrect a dropping WiFi connection and patch security holes. On the other hand, the wrong firmware (or an interrupted flash) will permanently kill the device.
The ZTE F460 is an EPON Optical Network Terminal (ONT) commonly used in FTTH (Fiber to the Home) setups Firmware Zte F460