Joke Collection Website - Public benefit messages - I sent four messages, but I didn't see 1. What happened?

I sent four messages, but I didn't see 1. What happened?

Ok ... turn off the phone ... take out the electromagnetic for 5 minutes ... you must turn it off and restart it, because there is something wrong with the system software!

This kind of thing often happens when we do mobile phone EMC test!

Belonging to electromagnetic compatibility interference ...