In the process of using the software, some junk files will be produced. If the mobile phone is not cleaned for a long time, it will become more and more stuck and will flash back.

Too many running programs: If you don't set them, many softwares will run by themselves, while too many mobile phone background programs will cause insufficient memory, which will lead to application flashback.

If there is software flashback, you can clear the memory first and then try again.