一般分析 １．手机无网络故障通常表现为手机能正常开机，但手机显示屏上无网络信息（显示中国电信或中国联通）、也无信号强度值指示。正常情况下手机入网后，显示屏上显示出网络名称，并且入网指示灯用闪烁的绿光来指示；如果无网络，网络指示灯闪红光，所以不入网也叫不转灯 General Analysis 1. No phone network failure usually shows the phone can boot normally, but there is no network information on the phone display (show China Telecom or China Unicom), there is no signal strength value indication. Under normal circumstances, the phone network, the screen shows the name of the network, and network lights with flashing green instructions; if there is no network, the network lights flashing red, so do not enter the network also does not turn the lights