My classmate sent me a short message, and after I read it, my mobile phone went black.

This is because your mobile phone is a fake one. This short message has no effect on your mobile phone, and it is not a poisoning phenomenon. This is because there is a symbol in this short message that controls a program in the cottage phone. This is just a little joke. You can forward it to others, but foreign trade machines will not be controlled, such as Nokia, Samsung, BBK and so on. &; ^