: Connect your computer to the router via Ethernet. Open a browser and enter the default IP address, typically

This is the easiest and safest way to get a free firmware update directly from ZTE's servers. MC7010 Quick Start Guide - FCC Report

: Upload the downloaded .zip or image file through the Local Update section in the router's administration panel. 3. Critical Update Safety Tips

: Export your current configuration settings to avoid data loss during the reboot.

: Do not attempt to "cross-flash" firmware between different regional variants (e.g., trying to flash a "China Unit" firmware onto a European "Plain Unit"), as this may result in a "NO SERVICE" error. Method 1: Automatic/Online Update (Recommended)

Stick to official free firmwares. If you need extra features (like advanced band locking), use the ZTE WebGUI or Telnet commands that are already present in official builds.