: While you can perform maintenance updates to improve stability or "unlock" the device for other carriers, no firmware can add physical 4G capabilities to a 3G chip. Maintenance and Alternatives
If you want true 4G speeds, low latency, and future-proof connectivity, the only real solution is to transition to an authentic 4G LTE pocket Wi-Fi router. ZTE offers several highly affordable, direct upgrades to the MF65M that feature a similar user-friendly interface but pack vastly superior hardware. 1. ZTE MF920U (The Budget 4G Choice) zte mf65m upgrade to 4g