Recently, mobile phones have been receiving strange text messages and advertisements. What should I do?

Generally, there are two situations: your mobile phone is poisoned or someone maliciously bombards you. If it is the first case, you should try it out of the factory. If it doesn't work, you can refresh your phone directly. As for the phone number, you can use QQ synchronization assistant to back it up. If it is the second case, it will be difficult, because the general bombing software is sent anonymously from the network, and it is difficult to eradicate it from the source, so you have to download and install some software that filters advertisements and spam, such as advertising housekeeper or other security software. Another possibility is that you installed some rogue software. Let's see what you've installed recently. Uninstalling may help.

Turn off the phone wifi and data. If there is no advertisement, it is poisoned or rogue software.

Manual only.