Iphone6splus 16g didn't download anything, leaving more than 5: g.

The memory is too small, so downloading more software will occupy the memory.

solutions to insufficient storage space: 1. make good use of the "dosage" option and open the settings -> General -> Dosage.

Click the button on the right side of the list to see the details, or you can delete some unnecessary items here.

The "Photos and Cameras" list shows how much space is occupied by camera film, photo gallery and photo stream, but they cannot be deleted individually.

the quickest way to delete photos is to connect to iTunes, import photos, and then delete them.

2. Check other items in iTunes: Generally, the category that takes up the most space here is "Other", which actually contains data of cache, backup, some downloaded files and some built-in applications, such as SMS and email. Delete the Web browser cache: Open the settings, click the Safari button, and click Clear History and Clear Cookie and Data. Delete SMS: You can delete a single SMS or the whole conversation. Usually, some short messages will contain some pictures, audio or video files, and some space will be recovered after deletion. Delete email attachments: Settings Mail, Address Book, Calendar iCloud, then scroll down to the end and click Delete Account. Of course, it is important to note that before deleting it, you should make sure that you remember the password of your email account, because you have to add it back. Delete voice memos, music files and e-books: Audio files and e-books also take up a lot of space.

you should also consider deleting these files, which are in voice memos, iBook and music applications.