Joke Collection Website - Public benefit messages - Why is there no unread SMS on the phone, and the screen still shows the icon of SMS?

Why is there no unread SMS on the phone, and the screen still shows the icon of SMS?

Hello, landlord. SIM card information is full. Delete the messages in your inbox and you're gone. Or set SMS → Options → Settings → Others → SMS Storage → Set it to 999, and then store the SMS on the memory card. Generally, a SIM card can only be filled with dozens of cards, and it will display a constantly beating information symbol.