Before downloading anything, you need to identify your exact hardware variant.
VER.A will destroy a VER.B router.The normal web interface hides the firmware upgrade option. Instead, navigate directly to: Huawei Hg532e Firmware
http://192.168.1.1/html/management/update.asp
Alternative path: http://192.168.1.1/update.asp (varies by ISP). Before downloading anything, you need to identify your
binwalk -Me HG532eV100R001C02B015_UPgrade.bin
Typical structure includes: