If you have landed here searching for the term you are likely tired of seeing "SIM Locked" or "Invalid SIM" on your LCD screen. You want a permanent, software-based solution.
Modifying firmware or using unlocking software carries the risk of "bricking" your device (rendering it unusable). This guide is for educational purposes. Ensure you have a stable power supply and the correct drivers before attempting any procedure. zte mf910 unlock firmware