Iphone6 SMS suddenly went blank.

First, the problem of mobile phone card needs to be solved by calling the designated operator (China Unicom, China Mobile or China Telecom). If it can't be solved, try changing a mobile phone card. It may also be that the mobile phone card itself has not been upgraded. Upgrade your mobile phone card, connect to itunes, find the system, and click Upgrade when prompted.

Second, the problem of mobile phone needs to call Apple to solve the problem after sale. Generally speaking, Apple will prompt to restore the system after sale. Mode: Settings-General-Restore-Erase all contents and settings.

IPhone 6 Plus is a smart phone launched by American Apple on September 14, Beijing time. With a 5.5-inch screen, the iPhone 6 Plus is the largest screen phone in Apple's history. IPhone 6 Plus was launched in Chinese mainland on 20 14, 10 and 17.