The received mobile phone information is just some strange symbols.

I heard this from a former art teacher!

What she said is the same as you. On a certain day, the mobile phone received a message. When I opened it, I found that it was all strange symbols! Even she was scared ~

The teacher said that it might have been sent by aliens to people on earth ...-"

Then she never deleted the message ...

Actually, I don't know if the above is small talk ~

I can't rule out that it's because some letters or fonts on the mobile phone can't be displayed ~ I can only display garbled codes.