: A tested firmware dump for model Z2450 (often used for repair) can be found via third-party repositories like Google Drive (Mirror 1) Google Drive (Mirror 2) Repair Files

When downloading and installing firmware, make sure to follow the instructions carefully to avoid any issues during the installation process. Also, be aware that installing custom or third-party firmware may void your device's warranty.

ZTE provides a Support & Download page where users can find user manuals and service manuals.