Although Xiaomi will produce many documents for daily use, this 80G is really scary.

Since it is mentioned that the file will disappear after the factory is restored, it is obviously brought by MIUI.

Don't use the default file management and mobile phone housekeeper. Use. Scan files with some lightweight or even micro-level apps.

Although the built-in app has extremely high internal file management rights, it can't do anything about the files hidden in the root directory (unless the phone is unlocked by root).

In addition, does your mobile phone often transmit files and data on multiple computers?

Daily use will not produce such a huge file as other classes.

Of course, people who have confidence in themselves can also consider using the powerful ADB command line (cautiously).