本文教你如何让iPhone信任你所连接的电脑以读取iPhone的数据，而要想让iPhone和电脑同步，也必须要连接电脑。
步骤
部分
1
部分 1 的 2:
信任一台电脑
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1
通过USB连接iPhone和电脑。在连接你之前没有连接并信任的电脑时，iPhone会提示你信任电脑。
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2
解锁iPhone屏幕。屏幕需要解锁才能信任你连接的电脑。
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3
在出现的通知中点击信任。当你解锁屏幕时，应该就会看到这个通知弹出窗口。
- 如果没有出现“信任”通知，那就表明你之前可能已经信任过这台电脑。如果没有，你可能需要还原“信任”设置。
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4
在iTunes中点击继续（如果出现提示）。根据你电脑的设置，点击“信任”后，你可能会看到这个通知。这样将在电脑上启动iTunes。
部分
2
部分 2 的 2:
还原信任设置
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1
打开iPhone“设置”。你可以在主屏幕上找到“设置”应用，它的图标是一个灰色齿轮。
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2
点击通用。你可以在第三组选项的顶部找到它。
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3
向下滚动并点击还原。
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4
点击还原位置与隐私。
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5
如果出现提示，输入密码。任何你以前信任过的电脑都会从iPhone上删除，你会被提示信任任何你连接的电脑。
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6
重新连接iPhone和电脑。解锁屏幕后应该会出现“信任”通知。
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7
查看iTunes更新。如果“信任”通知没有出现，iTunes可能已经过期，无法连接。你可以使用iTunes更新检查器检查更新。
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8
重启iPhone。重启iPhone可能会出现通知。按住“电源”键和Home键，直到屏幕关闭，出现Apple标志。在iPhone启动后尝试重新连接。