Whether there is an option to open an application from an unknown source, etc. , you need to find to open and allow installation.

The specific situation in each place is different.

The first set-top box has no independent operating system, so it is impossible to install or upgrade software. At present, most operators customize set-top boxes in this way.

The other is that you can install software.

The judgment method is simple. Open Settings, System Settings, and have a look at the system introduction. If the content is the same as or similar to the introduction list of mobile phone system, you can install the software.

Installing excellent playback software can not only enrich the video content, but also optimize the playback speed and decoding ability to some extent.