What's the matter that the weather forecast drop-down will not be updated?

Because the mobile phone system prohibits the weather from using WALN and data traffic. The solution is as follows:

1. Take oppor 1 1s as an example. Open the settings indicated by the arrow on the phone desktop.

2. After entering the settings page, click the dual card and mobile network indicated by the arrow.

3. Next, click on the application using WALN and mobile network at the bottom of the page.

4. Then, click the weather indicated by the arrow.

5. Next, as long as the weather is allowed to use WALN and data traffic.