Before looking for custom files, try the official method:
Higher drain when idle; real usage is 6–7 hours vs. 8–10 claimed. Zte Mf920u Firmware
Steps for specific firmware versions (e.g., BD_MTSRUS835FTV1.0.0B08 ). Before looking for custom files, try the official
Firmware for the MF920U is distributed as a .zip or .pkg file (typically named MF920UV1.0.0Bxx.zip ). It contains: Before looking for custom files