how to clean other data in storage its contain 17GB
If oem_logs or Face Unlock Debug folder is there then delete it and Open Dialer>Dial *#800#>oneplus logkit>Uncheck Save log>Delete History log>Reboot.
Delete the data from recycle bin of your file explorar if any.
Delete the data from bin of Google Photo/Gallery app if any.
Delete the OnePlus folder if it takes more space.
Delete the offline videos on YouTube if you want.
Sort the installed app by size in play store and check which app is taking more storage, clear the data accordingly to your need.
Clear the cache from every streaming app like Netflix, Hotstar, Jio TV etc.
Enable hidden folders and delete . thumbnail folder inside the DCIM folder.
Check which folder occupied the most storage, go inside of that folder and delete according to your need.
Uninstall app like parallel space if it takes more space
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by Zach X., 2020-01-18