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[问与答] Dell U2723qe 显示器 Type-C 口无法为手机充电

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如题，刚购买的 Dell U2723qe 显示器，通过自带的 Type-c 线链接 MBP （ DP 口），一切正常，可以反向充电。但是使用 iPhone 自带的充电线连接到另外一个 type-c 口时，显示器提示连接到设备，但是无法充电。

我的另外一台 U2723 一切正常（这台设备在国内，无法交叉测试）。请问各位知道是什么原因么？如何解决？

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