I have an iPhone SE that was recently updated to iOS 10 by mistake. Since it can't be downgraded, I've acquired an identical iPhone SE running iOS 9.3.4. I know I can't restore a full iOS 10 backup, but is there any way to restore just the Messages from the iOS 10 backup?
I don't just mean to extract and save them as a text file or something, I mean actually restore them in Messages so they show up as they normally would, as the history of the people being messaged.