My iPhone won't let me save photos or play videos?

My iPhone6s won't let me save photos, screenshot, change my lock/home screen picture or play videos.

1) NO NEED COMPUTER!
Go to settngs/general/abut. Check for how much space you have.

2) NEED COMPUTER
do an icloud backup. Then reset, connect to iTunes/then on phone restore from backup.

  • Why won't my Macbook Air let me import my videos on my iPhone to Photos? I just went to a concert last night and I took a few videos and I would like to add to my photos library but they are not importing. Does anybody know why this happens?
  • Why won't YouTube won't play videos on my iPhone? My phone randomly stopped playing YouTube videos. It just shows that it is loading and never play. I have great Wi-Fi connection. Every other app including Netflix runs smoothly. It doesn't work on the app or browser. I cleared the cache on my browser. I reset my phone. My phone and the app are updated completely. I have no idea what to do.
  • Why won't my iphone 4 let me save photos from google images? Every time i go to images and try to save a photo or gif, the only options are, 'Open', 'Open in New Page', Add to Reading List, and 'Copy' The only way I can ever save one is to go to the link the photo or gif is from. And honestly, that takes up time and is very annoying. How can I fix this?
  • My iphone won't let me save videos? Okay i have an iphone 3gs and my mom Has an iphone 4… She sent me 3 videos of me skiing but when i go to save them It won't let me… Like its not even an option. I can either mail it or open in tumblr… My mom took the video… Has anyone else had this problem and how do i save it?