Go to (or System Tools ) > Device Management > Firmware Upgrade (the exact path may vary slightly by carrier firmware). Perform the Upgrade
Given that the HG532n is EOL, finding a new firmware update is nearly impossible. Here is your action plan if you are stuck: huawei hg532n firmware update
The Huawei HG532 series is famously susceptible to , a zero-day vulnerability in its TR-064 implementation that allows remote attackers to execute arbitrary commands. Don’t Ignore It: A Guide to the Huawei
Purchase a VDSL2/ADSL2+ modem router from a manufacturer that still supports their gear, such as: huawei hg532n firmware update