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一般分析 手机的界面一般是指手机与用户交换信息的部分，一般包括手机的ＳＩＭ卡、听筒、送话器、振铃器、振动器、按键、显示屏等。 手机界面故障主要有听筒无声（通话时听不到对方的讲话音）、送话器无送话（通话时对方听不到讲话音）、不识卡或检查卡（手机插入ＳＩＭ卡后
The general analysis of mobile phone interface is generally refers to the mobile phone users exchange information with the part, including the phone’s SIM card, handset, microphone, ringer, vibrator, buttons, displays and so on. Phone interface failure are the main handset silent (the call can not hear each other’s voice), the microphone without a call (the other party can not hear voice talk), do not know the card or check the card (mobile phone SIM card inserted