Before searching for an update, you need to know which version you are currently running.

There are two primary ways to obtain the update file for the ZTE ZXHN F670L. 1. The Automatic Method (ISP Pushed)

Visit the official ZTE Support portal or your ISP’s official resource page. Search for "ZXHN F670L Firmware" followed by your region.

Open a web browser and type 192.168.1.1 into the address bar.

Connect your computer to the router via Ethernet (recommended) or WiFi.

Log in with your credentials. (Default is usually admin/admin or found on the sticker at the back of the device). Navigate to > Device Information .