What if Lenovo Music Lemon k3 has a Trojan horse?

According to the description, it is recommended to refer to:

1, download and install anti-virus security software, which can effectively remove viruses;

2. If using security software to kill viruses is ineffective, it is recommended to back up the data and try to restore the factory settings. Before resuming operation, back up some important documents and files stored in the fuselage, such as short messages, contacts, photos, software, etc. , so as not to cause unnecessary losses;

3. If the virus cannot be completely removed after the factory settings are restored, it is recommended to go to Lenovo maintenance site for treatment.