For some MF65 revisions:
: If your device is locked to a specific carrier, unlocking it might allow you to use a SIM card from a provider with better 3G/HSPA+ coverage in your area. zte mf65 upgrade to 4g free
(HSPA+ up to 21.6 Mbps). A software update cannot physically change the internal antenna or chipset to support 4G/LTE technology. However, you can "upgrade" your experience by debranding and unlocking The Truth About the ZTE MF65 "Free Upgrade"
If you see advertisements for a "ZTE MF65 4G Firmware Upgrade Download," proceed with extreme caution. You believe a firmware update can enable 4G
If your MF65 is carrier-locked, you can often get a free unlock code from your provider after 6-12 months of service. This allows you to test different carriers’ 3G networks to find the fastest one in your area.