In the router's web interface, go to > Firmware Upgrade . Select the file and click Upgrade .
To update the firmware on your Tenda AC5 router, you can use either the automatic online method or a manual local upgrade
For the AC5, firmware updates are often the only line of defense against a barrage of Common Vulnerabilities and Exposures (CVEs). Over the last few years, security researchers have identified critical flaws in Tenda’s ecosystem, ranging from buffer overflows in the httpd binary to authentication bypasses that can grant a remote attacker root access without a password.
