Then run:
Firmware is the low-level software embedded in the router’s flash memory. It controls the 4G modem chipset, the Wi-Fi radio, the routing table, the USB tethering function, and the web interface (usually 192.168.0.1 or 192.168.1.1 ). Firmware Zte Mf253v
If you are using a ZTE MF253v provided by a major carrier (such as Movistar, Telenor, or Telia), the safest way to update is through the carrier's official channels. These carriers often rebrand the firmware to include their logos and default settings. Then run: Firmware is the low-level software embedded
Go to Settings > Device Settings > Update Management . the Wi-Fi radio