For applications downloaded from the App Store, it is recommended to disconnect the Wi-Fi or change the network and try again. If it is a third-party application downloaded from the Safari browser, the reasons may be as follows:

1. The application’s signature certificate has been lost and the application cannot be opened or installed.

2. The website network is blocked. It is recommended to change the time period and try again. If an installed application encounters a situation similar to the following (discarded), or a gray icon appears and cannot be opened, you can turn on airplane mode and go to Settings->Safari->Clear History and Website Data to temporarily solve the problem.

First check whether the mobile phone network is normal. You can try downloading under WIFI.

If everything is normal, you can enter the phone settings, enter Safari, click Clear History, clear cookies and data, and see if it can be downloaded. If it still doesn't work, you can enter the phone settings, enter the iTunes store and App Store to log out of the account, and then open the phone settings - General - Restore - Restore Network

If there is an Apple ID permission problem, you can try to log in with another ID.

iPhone Models unveiled at the Steve Jobs Theater at Apple Park's new headquarters. Among them, "X" means the Roman numeral "10", which represents Apple's tribute to the tenth anniversary of the iPhone.

iPhone It is divided into 64GB and 256GB versions, with silver and space gray colors. The screen size is 5.8 inches, the weight is 174 grams, the height is 143.6 mm, the width and thickness are 70.9 mm and 7.7 mm respectively, and the resolution is 2436*1125 pixels.

The front camera is 7 million pixels and supports background blur selfies. There is a dual rear camera on the back, which is a combination of 12-megapixel wide-angle lens (F/1.8 aperture) + 12-megapixel telephoto lens (F/2.4 aperture), which supports portrait mode background blur.