1 If there is a dispute between the app downloader and the app uploader, please negotiate with the uploader to deal with it. If the negotiation fails, please go to the relevant department to file a complaint, or call the 110 police to intervene. This platform is not responsible.

2 Then click[Settings>>General>>Description File] (called "Description File" on iOS 9 and "Device Management" on iOS 10) in the device to find the description file with the same name

3 Click the file,select [Trust], and then the APP can be opened normally