What if someone bombards your mobile phone with text messages? And I don't know if it will last for a few hours, so I can only turn it off?

I have suffered from it before, and I solved it like this: when I found out that it was a short message bombing, I immediately restarted the machine. Before the short message function came back, I immediately called 186 to ask them to help me turn off the short message function for a while. After a while, I called 186 again to turn on the short message function, and it was solved. Fortunately, I suffered from a one-off event. If it was long-term or otherwise, I had no choice. I suggest you change your number, otherwise you can only do this. You can turn off the SMS function and turn it on when you need it, but it's very troublesome. I can only help so much. I hope it will be useful to you. Reminder, some heartless sellers on Taobao will do this trick in order not to let buyers comment on bad reviews, so be careful. That's why I did it that time.