How do I sync my iPad and iPhone so I can receive my photos back to my phone?
Sync my iPad to my phone to get my pictures back
iPhone 6s
Question marked as
Is the phone using the same Apple ID in Settings/Your Name/iCloud and is Photos syncing on?
Try going to iCloud.com using a computer browser to see if the items are there and which device they are from. That should show which device isn't syncing. On the device that isn't syncing, go to Settings/Your Name/iCloud and disable syncing. After a couple of minutes, turn syncing on. Allow time for the sync to complete. As a last resort, you can also try signing out of iCloud and then sign in again.