Huawei B618 Firmware Instant
Yes, but many versions include anti-rollback protection. If you try to downgrade from v11 to v10, the router may reject it. Use telnet commands ( at^upgrade ) cautiously.
The is both the brain and the bottleneck of your 4G router. By carefully selecting, downloading, and flashing the correct firmware, you can unlock faster speeds, better signal management, and advanced features like band locking and bridge mode. Huawei B618 Firmware