The device lacks the necessary physical radio antennas and processing chips to receive 4G signals. While software modifications (firmware) can alter the device's interface or settings, they cannot create physical hardware components that do not exist. Users attempting to follow "free upgrade" guides risk permanently bricking their devices.
Supports 2G (GSM/GPRS/EDGE) and 3G (HSPA/UMTS) bands. Maximum Download Speed: Capped at 21.6 Mbps (3G HSPA+). zte mf65 upgrade to 4g free
You are not alone. The ZTE MF65 is one of the most popular entry-level portable Wi-Fi routers ever released. However, a massive misconception circulates online: that you can perform a simple software “upgrade” to turn your old MF65 into a 4G device for free. The device lacks the necessary physical radio antennas
The internal antennas are tuned to receive and transmit data on specific 3G bands. Supports 2G (GSM/GPRS/EDGE) and 3G (HSPA/UMTS) bands
Understanding the hardware limitations of your device, the risks of online scams, and the legitimate alternatives available will help you navigate the 3G shutdown without losing connectivity. Why a Software Upgrade Cannot Create 4G Hardware
They mean a , not a software upgrade. They will send you a different 4G hotspot (e.g., ZTE MF279 or MF910) for free if you extend your contract for 12 months. That is a true free 4G upgrade—but via new hardware.
Place the hotspot near a window, high up, and away from obstructions to ensure the best possible 3G signal.