Since iPhone operating system was upgraded to iOS 8, Apple users have discovered many newly added features, one of which is Hey Siri. You all should know that Siri is an artificial intelligent assistant software built into iOS system of Apple. Also, this software adopts natural language processing technology to realize the interaction between iOS devices and users through natural conversations, and to do a lot of services such as searching data, querying weather, setting calendars and alarms, etc. Recently, not a few people reported their iPhone 6 Siri not working properly, which causes them great inconvenience. In order to settle this problem as early as possible, the tutorial details 5 foolproof solutions to do you a favor.