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手机一打电话就没信号怎么回事啊
更新时间: 2020-07-02 00:00:00  

1、重启手机,以便让手机重新进行搜索及注册;

2、在待机桌面下点击应用程序中的设定,点击连接更多网络,网络运营商,搜索网络,选择您SIM卡支持的网络运营商;

3、擦拭手机卡和手机的接触点,查看是否是sim卡接触不良;

4、更换一张SIM卡,是否sim卡已老化或坏损。

关键词: 手机 打电话 信号 怎么 回事

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