腾讯大王卡是2g网络是因为你没有切换4G卡槽，在设置中将4G卡槽切换为腾讯大王卡所在的卡槽即可。
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手机切换4G卡槽的具体方法：
1.打开“设置”
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2.选择打开“双卡管理”
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3.在切换处选择大王卡所在的卡槽
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手机切换4G卡槽的具体方法：
1.打开“设置”
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2.选择打开“双卡管理”
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3.在切换处选择大王卡所在的卡槽
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第1个回答 2018-05-03
第2个回答 2019-10-20
小米5C并没有卡槽选择
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