Mobile phone operation steps: in the graffiti online app, select "My" and click "Avatar", and then click "Mobile phone number" to bind a new mobile phone number.

If you can't install software on your mobile phone, you will generally support videos in 3gp and MP4 formats. You can convert video to 3gp or MP4 format on your computer (but the converted video may be out of sync with sound and image). If there are 3gp and MP4 videos, try to download this format.