Do not turn off the router, unplug the cable, or close the browser window while the upgrade is in progress. The process normally takes 3 to 5 minutes. The router’s lights will flash rapidly, and it will reboot automatically once finished. Troubleshooting Common Upgrade Issues Error: "Invalid File Format"
: This is a high-severity vulnerability found in the HG532e and other Huawei home gateway products. It allowed a remote attacker to access local files on the device without authentication. A firmware update was the primary fix. Specifically, versions older than V100R001C02B017 are affected by this issue. hg532e firmware download