1. First, log in to Suntech's mobile APP. You can't download videos when logging in on the PC side, you can only redial, and it will be cleared when the service expires. 2. Find your own learning course-textbook-selected reading, and then download (courseware and audio can be downloaded, important video). The video needs to be downloaded class by class, and all the downloads will be interrupted, and finally the download cannot be completed.

3. After downloading the video, you will find that your mobile phone takes up a lot of memory, but you can't find the teaching video, or you can open it in other formats through file management (this is the result of encryption). You can't watch it without paying. Let's start cracking. 4. Download a file browser through the mobile app store. Take the ES file browser as an example.

5. Open ES, open the options bar in the upper left corner, select File Analyzer in the tool, and select All Files-Details. 6. The directories are arranged according to the folder size, and open the folder "com.sunland.app".

7. Open a folder, select the largest folder to open (basically 200M), open this file, select "Video" as the opening method, and then watch it directly through any video viewing software on the mobile phone.