Restore photos
iPhone 5s
Hello sawtellhelp,
It sounds like you had iCloud Photo Library enabled before you reset your phone. You should be able to turn that on in your settings:
How do I turn on iCloud Photo Library?
If you want to turn on iCloud Photo Library on all of your devices, follow these steps:
In iOS 8.3 or later, go to Settings > iCloud > Photos, then turn on iCloud Photo Library.
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Restore photos