WiFi connects but it says there's no network

1. First confirm that the external WiFi network you're trying to connect to has proper internet access on its own (the device doesn't support inserting a physical SIM card — network connectivity depends entirely on the external WiFi);

2. The device's default WiFi channel is 36. In some regions, frequency band differences can easily cause connection failures, so go to the device's [WiFi Settings] page, manually switch the channel to 149, and try connecting again;

3. If system cache is causing the network module to malfunction, perform a “Factory Reset” in [System Settings], then restart the device and try again.