My camera roll has gone!
Well basically I imported my camera roll to my friend's laptop and then a few days later, all my photos were deleted from my camera roll in my iPhone! I haven't got iOS 8. My friend deleted the pictures off of her laptop because she didn't want them on, so I can't import them back. I also backed my iPhone up but I didn't think anything of it, I thought that would save my photos, not delete them if that's the case. Help would be appreciated.
iPhone 4, iOS 7.1.2