User manual

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You can also clean storage and accelerate the system based on
different categories of files and data.
Photo cleanup
You can easily delete photos that may either be less visually aesthetic
or repetitive. ColorOS assists you while cleaning up photos as it has
already automatically screened them out into the categories such as
screenshots, recently deletes, similars, burst shooting, blurred shots,
and edited photos.
If you delete photos under the above categories, more space will be
released. This action can not be undone.
Video cleanup
You could delete unnecessary videos or video clips after viewing them.
Select the video files that you intend to remove.
Audio and documents cleanup
After ColorOS filters audio and documents, you can choose which to
remove according to the size and type of audio and documents.