Warning: Use this method at your own risk. If your ISP is unresponsive, some tech forums maintain archives of router firmwares.
: Open a web browser and enter your router's IP address (typically 192.168.1.1 192.168.0.1 zxhn h168n v22 firmware update download upd
Complete Guide to ZTE ZXHN H168N V2.2 Firmware Update & Download Warning: Use this method at your own risk