There are serious issues with ZTE MC801A devices ... - 20024
Connect the MC801A to a more powerful external router. zte mc801a firmware flash link
For most users, the safest way to update is through the built-in Web UI. This ensures you receive the version specifically intended for your hardware variant without risking a bricked device. There are serious issues with ZTE MC801A devices
Depending on the method, you may need to connect to the internal serial headers or use the hidden EDL (Emergency Download) mode. zte mc801a firmware flash link