Mobile hotspots are vulnerable to exploits. Updated software protects your connected devices from malware, unauthorized access, and hacking attempts.

If your device cannot connect to the internet, you can perform an offline update: : Visit the ZTE Support Center to find specific firmware files for the .

This is the recommended and easiest method, assuming your device is connected to the internet.

If the device was provided by a carrier, search their support site for “MF920U firmware”.

If you have downloaded a firmware file, follow these general steps. Note that specific file names may vary depending on the source of the firmware.

: Optimizes the system to work better with modern operating systems and apps. step-by-step guide

Ensure the device is charged to at least 50%, or keep it securely plugged into a stable wall charger during the entire process.

Note: Do not turn off the router while the update is in progress. Method 2: Manual Firmware Update (via USB)

Enhances 4G LTE connection speeds, stability, and reduces battery consumption.

Q: What if I lose my settings and data during the update process? A: Regularly back up your settings and data to prevent loss during the update process.

to see if a newer version is available over-the-air (OTA).

: Security vulnerabilities in old firmware (e.g., CVE-2020-12345, hypothetical) are actively exploited by botnets targeting IoT devices. A compromised hotspot could be used for click fraud, as a proxy for illegal activity, or to inject malware into connected devices. Also, when a carrier introduces 4G+ (Carrier Aggregation), a firmware update is the only way to benefit from it.