这是一个可怕的错误
Installation failed with message Failed to finalize session : INSTALL_FAILED_USER_RESTRICTED: Install canceled by user.
It is possible that this issue is resolved by uninstalling an existing version of the `apk` if it is present, and then re-installing.
WARNING: Uninstalling will remove the application data!
Do you want to uninstall the existing application?
当试图在我的红米4 MIUI 8.5.4.0中运行apk时
启用OEM解锁
解决方案尝试
MIUI优化关闭 打开USB调试 通过打开USB验证应用程序
注意:当通过USB打开安装时，会弹出提示“设备暂时受限”
当前回答
设置->附加设置->开发者选项
1) Turn ON Developer Options
2) Turn ON USB Debugging
3) Turn OFF MIUI optimization
4) Turn ON Install via USB
其他回答
在开发人员选项中禁用模拟SD卡优化 关闭“开启MIUI优化” 标记强制关闭的应用程序
这些设置对我有用。
设置->附加设置->开发者选项
1) Turn ON Developer Options
2) Turn ON USB Debugging
3) Turn OFF MIUI optimization
4) Turn ON Install via USB
首先，检查您的USB debusing选项所有强制性应启用。 然后从设备上卸载应用程序，然后尝试重新安装。 这对我很有用。
If above answer didn't work for you as it didn't work for me on my Xiaomi Mi5.I tried to figure out the Core reason behind it and solve it. In MIUI, in order to change "Install via USB" option, you must be connected to the internet and signed in your Mi account. Due to some reason, requests from out of the China servers are getting rejected, so I connected to one open China VPN and tried again to enable 'Install via USB' and I got success. For detailed solution and VPN details, see this useful Youtube video: https://youtu.be/MeKUJlD-Ke4
它很简单，在MIUI 9中。x你需要显影器设置为ON，然后
>(系统和设备部分)附加设置->开发人员选项
(调试部分)
打开“USB调试” 打开“通过USB安装”
然后在Android选择Runb应用程序，选择你的小米手机
编辑:您还需要允许从未知来源安装
