ISP-specific firmware may change the interface language. If you need a generic English version, look for "Middle East/International" firmware builds. Conclusion
Note : ISP-branded versions (e.g., Maroc Telecom) may use specialized passwords like @HuaweiHgw . 2. Checking Firmware Version Hg531 V1 Firmware
Firmware for the HG531 V1 is not interchangeable with HG531 V2, HG532, or HG630 models. Using the wrong file will permanently damage the device. ISP-specific firmware may change the interface language
ISP VLAN or PPPoE settings erased. Fix: Log in and re-enter your PPPoE username/password (found on your ISP’s welcome letter). Or call your ISP to reprovision. Hg531 V1 Firmware