Most navigation has a reset button, which should be a small hole;
2, there is a REST hole in the navigation, with something inserted for a few seconds on the line;
3, if not, it is in the function table, in the lower right corner, or in the system Settings;
4, then plug in the power and wait for a few seconds, and finally release the toothpick to restore factory Settings;
5, but all the Internet Settings should be reset, especially the Internet account and password. After the factory Settings are restored, the account and password for accessing the router are also restored to the factory Settings.