Apple is prompted to enter Apple ID account and password when updating software
1. In this case you may be installed using the assistant, we can use the computer to update, the iphone connected to the computer and then use like ITUNES,PP Assistant to update.
2. Then we open the PP assistant click on "can be upgraded application"-"genuine upgrade" can be.
The Apple ID account that was prompted at update is not your own
1. The update software is not installed with your current Apple ID, this is all we need to do is update the Apple ID with the software installation.
network failure causes update
1. Network problem I try to set up DNS, click "Settings" on the Apple phone
2. In the figure below, find the "Wireless LAN" details as shown in the following figure.
3. Then we click the next exclamation mark in the wireless grid we use.
4. Then click the DNS column in the Open interface, as shown in the picture
5. Here we can use the 114.114.114.114 can also use 8.8.8.8 to do DNS, of course, if not updated we can try to change the time period and then update the software Oh.