Why does the SMS prompt at the top of Nokia's mobile phone screen keep flashing, but there is no SMS, and the SMS is not full?

Hello, landlord, your problem can be solved. Delete all the short messages first, and then find information → Options → Settings → Other → See if it is saved by mobile phone or memory card. If it's a mobile phone, replace it with a memory card, then return the message to delete all the information, and then call back. This solves the problem, and the system responds slowly!