iTunes12.6.x下载地址

iTunes12.6.x

关闭sip系统完整性保护

打开Mac终端输入命令查看sip状态

1	csrutil status

如果是disabled直接跳过关闭sip步骤,如果是enabled执行下一步

重启电脑,按住cmmand+r直到显示苹果图标时松开，进入修复模式。

点击顶部导航栏实用工具,选择终端。

终端中输入命令关闭sip

1	csrutil disable

重启电脑.

执行脚本安装旧版iTunes

1.打开LaunchPad找到脚本编辑器，粘贴下面脚本代码,点击运行按照提示选择12.6.x版本iTunes安装即可.

set question to display dialog "Delete iTtunes?" buttons {"Yes", "No"} default button 1
set answer to button returned of question
if answer is equal to "Yes" then
    do shell script "rm -rf /Applications/iTunes.app" with administrator privileges
    display dialog "iTunes was deleted" buttons {"Ok"}
    set theDMG to choose file with prompt "Please select iTunes 12.6 dmg file:" of type {"dmg"}
    do shell script "hdiutil mount " & quoted form of POSIX path of theDMG
    do shell script "pkgutil --expand /Volumes/iTunes/Install\\ iTunes.pkg ~/tmp"
    do shell script "sed -i '' 's/18A1/14F2511/g' ~/tmp/Distribution"
    do shell script "sed -i '' 's/gt/lt/g' ~/tmp/Distribution"
    do shell script "pkgutil --flatten ~/tmp ~/Desktop/iTunes.pkg"
    do shell script "hdiutil unmount /Volumes/iTunes/"
    do shell script "rm -rf ~/tmp"
end if
if answer is equal to "No" then
    display dialog "iTunes was not deleted" buttons {"Ok"}
    return
end if
	
set question to display dialog "Install iTtunes?" buttons {"Yes", "No"} default button 1
set answer to button returned of question
if answer is equal to "Yes" then
    do shell script "open ~/Desktop/iTunes.pkg"
    return
end if
if answer is equal to "No" then
    display dialog "Modified iTunes.pkg saved on desktop" buttons {"Ok"}
    return
end if