（1）首先确认一下你的手机是否停机了，若停机的话赶紧充话费，如果不是，确认你的短信中心号码有没有异常。
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（2）若不是话费及设置问题就是手机本身问题。你应该是装了一个管家之类的软件，如手机管家，你可能优化手机的时候如短信之类的手机自带软件被你禁用了功能。
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（3）解决方案：（以手机管家为例）打开手机管家→清理加速→自启管理→将短信功能开启（允许）。再重启一下就好了。
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（4）以上没用的话你就需要重置一下手机了。
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