You need to open it yourself. Because Apple's mobile phone doesn't adapt to the software of Aauto quickers, when using Aauto quickers' private message reply, you need to turn on the line feed key in the input method of Apple's mobile phone. Apple is an American high-tech company. Apple's revenue reached $365.8 billion, which was founded by Steve Jobs, Steve Gary Wozniak and Ronald Gerald Wayne on April 1976.