I emailed my brother a picture of us when we were little to use as the picture that pops up when I call him, but when he received it he wasn’t sure how to save it to his iPhone (which you need to do to assign to a picture to a contact).
To save a picture to your iPhone library from Safari or an email:
- Click and hold on the picture you want to save to your iPhone
- Click “Save Image”
- Now when you navigate to your photo album your newly saved picture will be there to do with it what you please

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