Why can't I see logo on iqoo5S desktop?

There may be a bug in the mobile phone, and the solution is as follows:

1. Disconnect wifi and turn off Auto Setup in Settings-More Settings-Date and Time.

2. Set the date to today's date, and then reconnect the stable and available wifi.

3. Wait about 5 minutes to enter Settings-Status Bar and Notifications-Manage Notifications-and open the option of applying the tab in the corresponding software.

4. After the normal display is restored, you can turn on "Automatic Settings" in the date and time settings.