Turn off the MF927u. Connect it to the PC via USB while holding down the power button to initialize communication with the update framework.
Change Web UI/Firmware (e.g., from network-locked to generic/unlocked). Repair corrupted firmware installations. Preparing for a Firmware Update on MF927U Zte Terminal Software Update Framework Mf927u
Is your MF927U , or is it a global/unlocked version? Turn off the MF927u
Go to Settings > Device Settings > Update . Zte Terminal Software Update Framework Mf927u