RSWStull Said:
"My phone says 'iPhone storage full' but when I view my device storage it’s more than half available. I have tons of iCloud storage still available as well. How do I get rid of this error?"
-------
Try Removing Data from the iPhone itself...
Troubleshooting iPhone Storage:
Internal storage cannot be upgraded. It is what it is. So, the maximum internal storage capacity never increases, even if you upgraded your iCloud plan. Learn More here: What's the Difference Between Device Storage and iCloud Storage? Apple Support.
So, what to do:
Clear Space:
Try clearing internal storage though use of the following:
What Space to Clear:
A. Clear Temporary Internet Files:
Clear your Temporary Internet Files(Cookies & Cache) of Safari:
And...
B. Clean TV and Music Libraries:
Remove all unneeded files from your TV and Music Libraries. Full-Movies take up 2-4GB typically, and a bunch of those would take up a load of storage, ideally. So, if you have any movies that are not needed, then delete them.
And...
C. "Other" being the Culprit:
Use my User Tip:The storage named "Other"(or "System Data") is a grey bar seen in storage. How to Clear "Other" in your iPhone's Storage - Use Backup - User Tip