Step1
Go to the website http://www.downloadhelper.net/ with Google Chrome, then click “Install” and “Install from Chrome Web Store”. (Please use VPN network)
Step2
Please login your Google account. (If you have logined, turn to Step3)
Step3
Click “Add to Chrome” (添加至 Chrome ) and then click “Add extension”.
Step4
After about 30 seconds, the plug-in will be installed successfully, and you can see it in the extensions.
Step5
Right click in the video area, then click “Video DownloadHelper” and “xxx MB – MP4”
Click “Use Browser” and the video will be downloaded.