1. 官网下载PD 18.0.2

https://download.parallels.com/desktop/v18/18.0.2-53077/ParallelsDesktop-18.0.2-53077.dmg

直接安装，千万不要登录账号！！！
退出PD，查看MD5，如果不一致，请重新下载上述的指定版本

// 正确的MD5为：1eba7cd331518453ece0ecc888d8cbfe
md5 "/Applications/Parallels Desktop.app/Contents/MacOS/Parallels Service.app/Contents/MacOS/prl_disp_service"

启动服务，退出账号，再停止服务，如果没登录过，这一步可以跳过

# 启动pd服务
"/Applications/Parallels Desktop.app/Contents/MacOS/Parallels Service" service_start
 
# 退出原本的账号，如果有的话
"/Applications/Parallels Desktop.app/Contents/MacOS/prlsrvctl" web-portal signout
 
# 停止pd服务
"/Applications/Parallels Desktop.app/Contents/MacOS/Parallels Service" service_stop

2. 开始准备关键字替换

杀掉所有pd服务和app

sudo killall prl_client_app prl_disp_service

# 创建临时目录
mkdir ./tmp/
# 替换license，关键步骤
echo '{"license":"{\"product_version\":\"18.*\",\"edition\":2,\"platform\":3,\"product\":7,\"offline\":true,\"cpu_limit\":32,\"ram_limit\":131072}"}' > ./tmp/licenses.json
# 给 prl_disp_service 打补丁
cp "/Applications/Parallels Desktop.app/Contents/MacOS/Parallels Service.app/Contents/MacOS/prl_disp_service" ./tmp/prl_disp_service
printf "\x6a\x01\x58\xc3" | dd of=./tmp/prl_disp_service obs=1 seek=5982080 conv=notrunc
printf "\x6a\x01\x58\xc3" | dd of=./tmp/prl_disp_service obs=1 seek=8180352 conv=notrunc
printf "\x20\x00\x80\xd2\xc0\x03\x5f\xd6" | dd of=./tmp/prl_disp_service obs=1 seek=17474948 conv=notrunc
printf "\x20\x00\x80\xd2\xc0\x03\x5f\xd6" | dd of=./tmp/prl_disp_service obs=1 seek=19397140 conv=notrunc

检查替换后的MD5

# 检查替换后的 prl_disp_service 的MD5
# 应该是 76485203bdf19841e79fa7dc092ad70e ，如果不是，请停止当前操作
md5 ./tmp/prl_disp_service

替换并完成签名，请逐行执行

# 安装替换的文件
sudo cp -Xf ./tmp/licenses.json "/Library/Preferences/Parallels/licenses.json"
sudo cp -Xf ./tmp/prl_disp_service "/Applications/Parallels Desktop.app/Contents/MacOS/Parallels Service.app/Contents/MacOS/prl_disp_service"
# 修改文件的归属人和权限
sudo chown root:wheel "/Applications/Parallels Desktop.app/Contents/MacOS/Parallels Service.app/Contents/MacOS/prl_disp_service"
sudo chmod 755 "/Applications/Parallels Desktop.app/Contents/MacOS/Parallels Service.app/Contents/MacOS/prl_disp_service"
# 重新签名刚刚替换的 prl_disp_service， 防止报错
sudo codesign -f -s - --timestamp=none --all-architectures "/Applications/Parallels Desktop.app/Contents/MacOS/Parallels Service.app/Contents/MacOS/prl_disp_service"
# 锁定 licenses.json (如果要解锁，可以吧`schg`替换成`noschg`)
sudo chflags schg "/Library/Preferences/Parallels/licenses.json"
# 删除掉临时文件夹
rm -r ./tmp/