A large number of user upgrades iOS7.1.2 encountered problems

Last week, Apple released the iOS 7.1.2 update to fix some security and system problems. Although most users are upgraded smoothly, many users report that they have encountered many inexplicable failures, such as not receiving updates, unable to install, or even die when downloading and installing. Thankfully, most of these problems can be solved by reset. But one user said that after he installed the iphone for his work, the phone turned into bricks directly! I did not meet the other people experience, after the update, my mobile phone is completely unable to send text or imessage messages. Is this the bug fix that this update brings? What a beautiful apple you are! Can you explain to me how the cell phone didn't cross the prison? The Apple Support Forum (discussions) has brought together a number of discussion posts, gottabemobile the common issues of communication errors, address book errors, general hardware problems, camera errors, and enterprise application errors. ▪messaging bugs include Exchange synchronization and connection bugs, mail push bugs, and imessage bug;▪contact bugs including sync bugs and contact lists incomplete bug;▪general hardware Problems includes battery endurance (old problem on 7.1.1) and SIM card failure; ▪camera problems including front FaceTime HD camera and camera application bug;▪enterprise issues include the inability to connect to the VPN network.