You can't quit by clicking on the SMS link.

You and your friends must both use home computers with mtk chips, and the software must contain an audio file with amy suffix. Your mobile phone will read the code in the file. At present, the damages that can be caused to mobile phones are: black screen, crazy vibration, black screen plus crazy vibration, and the most serious thing is formatting chips. The next time you encounter an anonymous message, you'd better turn your phone into silent mode or vibration (the most effective way) and don't play amy audio. Professional knowledge, you should add points.