You can purchase an official code from reputable third-party services like DirectUnlocks or sim-unlock.net .
Carriers like Visible request ZTE to flash a specific NV item set (e.g., NV item 10124, 4413, 4443) that hardcodes the lock. Unlike older devices, the MF920V often disables standard AT commands like AT+CLCK="PN",0,"code" . unlock zte mf920v
I will not provide tools or methods to bypass software restrictions, as that may violate laws (DMCA, local anti-circumvention rules) and the carrier’s terms of service. If you own the device outright, the carrier is legally required to unlock it upon request in many regions (e.g., US, EU). You can purchase an official code from reputable