本教程适用于
产品型号:iPhone 12
系统版本:iOS 14.6
型号:iPhone 12
系统:iOS 14.6
软件:
苹果手机的系统更新大约需要半个小时。保持电池电量充足,50%以上或插上电源升级系统。升级手机系统前,请确保手机有3-4G的存储空间。在升级手机系统之前,最好提前备份重要数据。保持网络畅通、升级手机系统都需要网络的支持。
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