















: View real-time signal metrics like RSRP, RSRQ, and SINR that are sometimes absent from the default simplified UI. Advanced Firmware Modes
Firmware is the low-level software that controls the router’s hardware. For the MC801A, it manages: zte mc801a firmware
| Firmware | Carrier / Region | Key changes / notes | |------------|--------------------------|----------------------| | | Generic / Early release | Initial 5G NSA support, buggy Wi-Fi 6 | | B15 | Three UK | Stability, VoLTE fix | | B16 | Telstra (Australia) | Better 5G band n78 performance | | B19 | Optus (Australia) | Band locking disabled? | | C12 | T-Mobile (US) | Locked to T-Mobile firmware | | C15 | Proximus (Belgium) | IPv6 improvements, UI changes | | B28 | Swisscom / Sunrise | Heat management, SA mode | | V1.0.0-2022 | Unlocked (H3G/EE) | WebUI language fix | ZTE MC801A Firmware: A Comprehensive Guide
