手机上的状态指示灯可以显示手机在不同网络信号下的工作状态,下面以爱立信手机为例作简单介绍。手机状态指示灯不显示时,说明用户已走出网络服务区或进入服务盲区,暂时接收不到信号,还有一种情况是手机电池电量耗尽而自动关机了: 绿灯不停地慢慢闪烁,说明手机已进入漫游状态,通信正常; The status indicator on the phone can display the working status of the phone under different network signals. The following is a brief introduction of the Ericsson phone as an example. When the status indicator of the mobile phone is not displayed, it indicates that the user has left the service area of ​​the network or enters the service dead zone and can not receive signals for a while. In another situation, the mobile phone automatically turns off when the battery is exhausted: the green light slowly blinks, indicating Mobile phone has entered the roaming state, communication is normal;