I have an iPhone 6, so does my wife.
Normally, when at home, I keep my iPhone plugged into a usb port on my Win 7 computer, to keep it charged.
My wife had a photo on her I phone that I wanted to download onto my PC. I connected her phone to the USB port; computer did not recognize it.
So I decided to email the photo to myself. I tried to do that, it required I put an email address in, I put my gmail address in. Then I was able to email the photo to myself.
While I was trying this, it kept tryng to connect to iCloud (5 or 6 times at least), I kept telling it no.
Somewhere in this process, it loaded all my contacts (I think from Gmail) onto my wife's iPhone. How, and why it did that is a total mystery, but I've given up on trying to understand the iPhone, although I have over 40 years of computer tec hnical experience.
The question is, is there a way I can "mass delete" all the unwanted contacts off my wife's iPhone, or do I have to so it one at a time?
Can I like "delete all added yesterday" (or a specific date?).