OK, so my wife's iPhone 5S was part of the iOS 8 beta program and she had iCloud photo library enabled. She had more than 10,000 photos in her photo library (about 10,700, I believe). For some reason, her iPhone lost the ability to take and save pictures. She noticed that she can take pictures with the camera or even take a screen shot and everything appears normal, but the photos never appear in 'recently taken' or in the photos tab. If you take a picture the picture appears in the little preview window in the bottom right of the camera screen, but if you try to click on it to open it then the camera app hangs and needs to be force closed. We're not totally sure when it happened, because like I said, it appeared that everything was working and it wasn't until she tried to text a picture that she recently took that she realized that the photos weren't actually saving. (She wasn't out of memory.. it's a 64G phone and she had more than 13G free) The last photos that were successfully saved were from 9/7, so that was while she was on iOS 8 beta 5. I'm not sure if the problem happened while she was on beta or during the upgrade to GM. (The upgrade to GM was done by restoring the phones in iTunes, then restoring an iCloud backup). We discovered this a couple of days ago and weren't too worried about it because she was getting an iPhone 6 today and I figured that would probably resolve the issue. However, when we restored her latest backup to the iPhone 6 the problem came with it and now she can't take any new photos with the iPhone 6. I decided to use the iPhone 5S to play around and see if I could figure out what happened and try to resolve the problem so I could then fix it on her iPhone 6. The first thing I tried to to was disable icloud photo library. That didn't make a difference. Then I reset all settings. Still broken. I then deleted every single picture and video left on her phone (in Windows I opened the device and went into the DCIM folder and deleted all of the pictures). I verified on the phone that there were no pictures left and tried to take a new picture.... same problem. I also noticed that even though the phone and the computer saw no pictures on the phone, the usage report showed Photos & Camera as taking up nearly 500M, so clearly there was still something left. I decided to take another backup of the phone, but this time I turned off "photos" in the backup settings. I figured I'd erase content and settings, then restore the backup without the "photos" data. Once the backup completed I erased all content and settings in preparation for restoring the backup. Before I did that, though, I figured I'd set it up as a new iPhone and just verify that things were working properly after the wipe. Amazingly, when I tested it after setting it up as a new iPhone, the problem still existed. At this point I put it in DFU mode and let iTunes re-download and reinstall iOS 8. I set it up as a new iPhone again and tested again and it finally worked. I could take pictures and save them. So, now I erased all content and settings again and I'm attempting to restore the backup that I made earlier with photos turned off. I'm not sure I have too much faith of that working, but I should know shortly how it goes. So, all that said, do you guys have any thoughts here about what might be going on or how I can get her data restored without breaking her camera in the process? She has saved iMessages going all the way back to 2009 and data in other apps that's pretty critical for her. While starting from scratch might be the best option, it would be a pretty tough pill for her to swallow, so I'm really hoping to avoid that. Thanks much, Brett Edited to add that her iPad Mini Retina was also part of the iOS 8 beta program and also has iCloud photo library enabled pointing to the same photos. The iPad does not have this same issue, so I don't believe it's related to iCloud Photo Library.