Do not download firmware from random "Driver Download" websites that pop up on Google. Those files are often malware, corrupted, or mislabeled.
If your goal is not to keep the original firmware but to secure the router entirely, enthusiasts have ported to certain HG532e revisions. huawei hg532e firmware update download
If your router has your ISP’s logo on it, this is the only safe source. Log in to your ISP’s customer portal or check their technical support forums. They occasionally release updates to fix security vulnerabilities (such as the infamous "Mirai Botnet" vulnerability that affected this model years ago). Do not download firmware from random "Driver Download"
Official firmware for the HG532e is generally not available for direct public download on the standard Huawei Consumer Support site. Instead, it is typically distributed in the following ways: If your router has your ISP’s logo on