Apple's mobile phone APP logo turns black, can't be opened, and can't be deleted. What's the matter?

At this time, there should be insufficient memory, and the system itself is cleaning up the cache in the application. It is recommended to clear the mobile phone cache and restart.

1. The first thing is to check whether the network is normal, which is caused by many people not connecting to the network. Click Settings on the phone desktop to enter the settings options.

2. If you want to use data entry, click "Cellular Mobile Data" below.

3. Turn on the data stream switch at the switch above the data setting bar, and then open the App Store.

4. If it is a wireless connection, click the wireless LAN below on the Settings page to enter the wireless settings.

5. After entering the settings bar, click Connect wifi. If the connection data can be opened, if the connection cannot be opened, please click the exclamation point after wireless.

6. Click the DNS below in the column that appears, and just modify the IP address of the DNS server above, for example:123.125.81.6 or110 1.226.4.6. After modification, the wireless will be automatically reconnected without saving, and it can be turned on after connection.