My mobile phone belongs to Nokia 5233, and there are often numbers that send text messages saying that my mobile phone is poisoned. I was just a little skeptical at first, but later I thought it was t

My mobile phone belongs to Nokia 5233, and there are often numbers that send text messages saying that my mobile phone is poisoned. I was just a little skeptical at first, but later I thought it was too much. ... Text messages are all advertisements. For example, NetQin loves to do this kind of thing. I tell you clearly that there are mobile phone viruses, but there are too few. I've used my mobile phone for five years, and I've been fooling around, downloading things and installing all kinds of software, and I've never been poisoned. The slow response is mostly due to too many things loaded and too much garbage after a long time. Delete the useless ones, or install a deep cleaning software.