How can I remove other space in my iphone?

Hello maziyardezham,

Thank you for using Apple Support Communities.

The following article provides information regarding the storage on your iPhone.

Check your storage on your iPhone, iPad, and iPod touch

The following sections provide seem most applicable to your question:

More about cached files in "Other" iOS storage

Cached files are created when streaming or viewing content like music, videos, and photos. When you stream music or video, that content is stored as cached files on your iOS device. iTunes categorizes cached music, videos, and photos as Other instead of actual songs, videos, or photos.

and

If you want to delete the cached files from your iOS device

Your iOS device automatically deletes cached files when it needs more space. You don't need to delete them yourself.

Best regards.

7 GBs of Other generally means that the system or an App is corrupted and if so your only choice is to do a restore. I would restore from backup first but the corruption could come back. If so you would have no choice but to restore as new and re-configure all which is time consuming.

https://support.apple.com/en-us/HT201252

Take a look at those articles:

www.idownloadblog.com/2016/02/10/about-other-iso-storage/

www.idownloadblog.com/2016/02/16/howto-decrease-other-iso-storage/

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