How to delete contents on “Other” section of the storage
How to reduce the storage on the “other” section? This section has taken lot of space and cannot find a way to delete content
iPhone 6s Plus, iOS 11
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You probably have an iPhone 6s with too little storage for your current and likely future needs, and are here looking for any way to work around the resulting limits.
Fundamentally, there isn't any way. You either delete or offload apps and files, or acquire an iPhone with storage adequate for your use. An iPhone with too little storage will always need management of the storage. Whether to load or unload files, delete files, or to offload to iCloud, whatever.
Here is what Apple states about that type of storage: Other: Non-removable mobile assets, like Siri voices, fonts, dictionaries, non-removable logs and caches, Spotlight index, and system data, such as Keychain and CloudKit Database. Cached files can't be deleted by the system.
Put differently, not stuff that can be deleted. You can reset and reload, of course, and the Other storage will be regenerated and repopulated as iCloud and apps and Spotlight rebuild your caches.
How to get to a newer version of iOS:
Update your iPhone, iPad, or iPod touch - Apple Support
There are ways to offload some of the data to iCloud such as movies and photos too, if this has not already been enabled:
Manage your photo and video storage - Apple Support
There was a bug here in early iOS 13 (mentioned in the reply above), but you're on iOS 11 per the footer, and there'll be no way for you to even get from iOS 11 to iOS 13 now. Your upgrade will get iOS 14 or (real soon now) iOS 15.
Longer-term, the fix is an iPhone with storage adequate for your needs, and likely future needs as apps and iOS and the rest all tends to get larger over time.
