After E63 was blocked in Saudi Arabia, some words in Chinese short messages were boxes and could not be read. What is the reason?

Every mobile phone has its own "font", just like ordinary mobile phones can recognize Chinese characters and English, but many mobile phones can't recognize traditional Chinese characters, Japanese, Korean and other characters, so they have boxes, and some symbols can't be recognized, and they also display boxes, hehe, for example).

So when you brush the computer, the font may be incomplete or traditional, and some words will be unrecognizable when you send them.

Try to brush the font library.

I hope my answer is helpful to you.