With iOS 10.3.1 there is a bug that don't let you take Live Photos when the available space is less than 130MB. You don't get any error or advice you simple can't take a live photo and instead the photo is normal. With older versions this did not happen and you could take Live Photos even you have only 10MB available space. This is a issue because even with 256GB if you took a lot of live photos and videos in 4k, you always are out of available space. I am loosing great moments with live photos because of this bug that I really hate. I hope that someone at Apple reads this and fix it in the next version of iOS.