Before you start, it's a good idea to note down your current firmware version. This can usually be found in the device's web interface under settings or system information.
Let’s be pragmatic. The rule of thumb for routers is: Security vulnerabilities are invisible. Update Software in ZTE MF296R
Open a web browser and type the IP address of your device (commonly 192.168.0.1 or 192.168.1.1). Log in with the admin username and password (default is often admin for both, but check your device's manual if you've changed these). Before you start, it's a good idea to