The weather sign that comes with Oppo mobile phone is missing.

Troubleshooting for the disappearance of mobile phone system icon: 1. Check whether the phone has guest mode. If yes, modify the owner's password and enter the mobile phone to see it; 2. Go to "Settings > Other Settings > System Application Management >; All > defaults to all systems (or set >；; Application Management > Application List > Display System Process > System Desktop "clears the data to see if it is restored; "3. Go to Settings > Security > Apply Encryption > Set Password > Select Apply > Open Password Verification to see if the hidden desktop icon is turned on; When you open the hidden desktop icon for the first time, a window will pop up and prompt "Set Access Number". Set the 1- 16 digital access number that starts with # and ends with #. After setting, the application will be hidden. Enter the set access number in the dial to view the hidden applications.

4. If the above methods can't solve your problem, I suggest you back up your data, restore the factory settings of your mobile phone or take the purchase invoice, warranty card and mobile phone to the nearest OPPO official service center for testing and processing.

This answer applies to all OPPO models.