I think the most important thing is to have the software in the mobile phone to support this operation, because manual operation will be more complicated, and sometimes it will be unclear which should be cleaned in time and which should not be cleaned. It is suggested that Teng Xun mobile phone housekeeper can be used, which does not occupy the memory of the mobile phone, but it can help the mobile phone solve many things that occupy the memory, and it can also give the mobile phone a safe use environment. I hope I can help you.