Zte Mc801a Firmware Update Instant

| Version | Carrier / Region | Key Changes | |---------|-------------------------|-----------------------------------------------------------------------------| | B06 | Early stock (Three UK) | Initial release, unstable for some. | | B09 | Three UK / Generic | Fixed random reboots, improved Wi-Fi 2.4 GHz stability. | | B12 | Optus / Australia | Added IPv6 support, better 5G SA (Standalone) compatibility. | | B13 | Three UK | Introduced band locking (hidden menu), fixed SMS issues. | | B15 | EU generic | Improved VPN passthrough, reduced latency. | | B19 | T-Mobile / Austria | Patched CVE-2023-26909 (security hole), added bridge mode. | | B20 | Latest Three UK (2024) | Full 5G SA support, UI speed improvements, DNS over TLS. |

Important: Firmware versions are not universal. A B13 for Three UK is different from a B13 for Optus. Do not cross-flash. zte mc801a firmware update

This is the preferred method for power users who have downloaded a specific .bin or .zip firmware file. | Version | Carrier / Region | Key

Prerequisites:

Steps:

Enthusiasts sometimes share leaked ZTE MC801A firmware builds (e.g., versions with unlocked band locking or Telnet enabled). Approach with caution: Important : Firmware versions are not universal