天气预报 > 其他 > 魅蓝u20手机不认sim卡原因
魅蓝u20手机不认sim卡原因
更新时间: 2020-06-30 00:00:00  

1、检查SIM卡是否插入正确位置,如果是的话可以重新插一次SIM卡。2、检查SIM卡金色卡片区域是否明显受损或划伤。如果是的话只能更换。3、SIM用的时间长了或者经常拔插SIM卡会引起卡与手机的接触不良,此时就需要检查SIM及电话的电极,如果不干净,可用防静电的布来清洁一下。

关键词: u20 手机 sim 原因

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