If your device is stuck in Chinese, "English Firmware" versions (like V6.0) are often sold pre-installed on marketplaces like AliExpress
Find a JTAG programmer first. You will likely need it. zte f601 firmware download patched
Use the official Telnet debug commands if available. If not, buy an unlocked ONT. If you ignore this warning and download a patched file anyway, at least scan it with VirusTotal and have a hardware flasher ready. If your device is stuck in Chinese, "English
The ZTE F601 is a fiber-to-the-home (FTTH) ONT (Optical Network Terminal) device used to provide high-speed internet access. It supports gigabit Ethernet and Wi-Fi connectivity. zte f601 firmware download patched
ISP-locked F601s have hidden menus. A patched firmware removes the carrier restrictions, turning a "Branded" ONT into a "Generic" one. This allows you to: