Apple mobile phone upgrade iOS9.2 after the App Store can not open the landing

One, Apple's server problem, if the number is too large to cause the server to break the temporary network problem.

Cause the server to crash, encounter icloud and Apple ID cannot log in, App Store can't download and update app, please don't worry, Apple is repairing the server

Second, Apple's servers abroad so we open it will be slower, at this time can be set up DNS, specific as follows

First, find "settings" from the iphone desktop and click Enter, as shown in the following figure.

Second, and then enter the "Wireless LAN" settings, as shown in the following figure.

Third, enter the wireless LAN settings, and then click on the iphone has connected WiFi wireless network Name "I", as shown in the following figure.

Next we can see the DNS address settings, we will now have to change the DNS address to the need to set the DNS address, as shown in the following figure.

Five, generally need to fill in 2 sets of DNS addresses, between the two with a comma interval.

third, their own network not to change a network, we can try to use the 3/4G network to see, maybe WiFi than mobile network OH.