How to clear out this Photos/ Camera Roll related data taking space on the iPhone even after Deleting all Pictures? iPhone 6 iOS 10.2: 


Used iMazing: Selected iPhone Between left sidebar options: Pick “Camera” instead of “Photos” - kinda counterintuitive. Select All / CTRL A Delete from right Menu / or Trash icon buttton.


Deleting 7000+ photos took a while. To test if it’s working I closed iMazing and when I got back in as before, was left with 2000 or so.
Repeated and mostly gone. For some reason 2/300 were left and would not delete no matter what I tried via iMazing.

So deleted it using the Photos App - Selecting from Bottom right to Top left (auto scrolls) and selects all.


Delete &amp; then Remove recently deleted.



Now I thought this was done; no pics or videos or anything showing inside photos/ camera roll.

—————

But when I look via 

General > iPhone Storage and select the app:

Photos &amp; Camera - 318 MB >

Synced from iTunes Library 70 MB  

Shared Photo Stream 248.1 MB

I don’t remember using any of these above.

How can this be cleared out?
It is likely that a wipe and restore will fix the issue.

As the iPhone is essentially a pocket computer with a simplified and locked down interface it is difficult, at best, to get into the inner workings to apply fixes that are needed to solve a particular problem .

I have found that many issues like this are readily solved by a simple, though tedious, process.


Back up your iPhone via iTunes to your local computer. Give the backup a password so it saves the app passwords already on the iPhone
Go to Settings > General > Reset > Erase all content and settings and wipe the phone
When the phone reboots, plug it back into the computer and restore from the backup you just created.
You will have to now enter AppleID/iCloud passwords to reconnect it to your Apple accounts


You should now see that the space formerly occupied by (deleted) photos and the like is now freed up.