Why is the old display of mobile phone weather desktop updated?

The weather forecast in the mobile phone is updated in real time by the network and also needs software support. The weather forecast can't be updated, mainly considering these factors:

1. If the phone is not connected to the Internet, it cannot be updated. Be sure to open the data or wifi connection;

2. Set the weather forecast to be updated automatically;

3. The weather that comes with many mobile phones is widget and needs to be reinstalled.

4. The weather app failed, and it was uninstalled and reloaded.