The update may take 5–10 minutes. The router may reboot automatically when complete.

Position the router near windows or elevated surfaces to minimize physical interference and secure the strongest possible signal. Practical Alternatives for Transitioning to 4G

Attempting to upgrade an MF65 to 4G via software is like trying to turn an FM radio into a television by rewriting the instruction manual. The hardware simply does not possess the components to interpret the signal.

Instead of investing time in a hopeless hack, purchase a used, entry-level 4G MiFi device. Models like the ZTE MF65M, ZTE MF283, or Alcatel LinkZone are widely available on eBay, Facebook Marketplace, or thrift stores for $10–$20. This is the financial equivalent of "free" compared to the value of your time. The MF65M, in particular, is a direct successor to the MF65, using the same form factor and battery but with a proper 4G LTE Category 4 modem.

The most critical factor to understand is that 1. The Cellular Modem Chipset