Important Note Before You Start:
Firmware for ISP-supplied routers (like the ZTE F660) is region and provider-specific. A firmware for a Portuguese Vodafone F660 will not work on a Chinese Telecom or Brazilian Claro version. Using the wrong file can permanently brick your device.
Disclaimer: This article is for educational purposes only. Flashing third-party firmware voids your warranty and may permanently damage your hardware. The author does not host or provide direct download links for copyrighted ZTE firmware. zte f660 firmware v80 fixed download
ZTE has released updated firmware versions to address the issues with the V80 firmware. The updated firmware versions include: Important Note Before You Start: Firmware for ISP-supplied
Future Work
Benefits of ZTE F660 Firmware V80
Do NOT flash a “fixed” firmware unless: Failed downloads : The firmware download may fail