Flashing custom or patched firmware carries a risk of bricking your device. Proceed with caution and ensure the version matches your hardware (e.g., BD_MF293NV1.0.0B12 ). ZTE C3xx OLT Firmware Upgrade - SmartOLT
Such patches are often shared via 4pda, XDA Developers, or GitHub repos with titles like MF293N_Unlock_v2_patched.bin . zte mf293n firmware patched