See internal KB #ZTE-FW-2025-02.
2.1.6 Release Date: 2025-02-20 Device Support: ZTE MC801A, MF286D, MF289F, MF983, K3565-Z, and more. Zte Modem Firmware Update Tool
The official ZTE firmware update utility for 4G/5G modems and routers. Safely flash firmware files, recover corrupted devices, and update bootloaders. See internal KB #ZTE-FW-2025-02