My original iPad has been dropping out of Facebook for quite a while. When typing in FB and a few other apps, I would have to wait after each key was pressed. If I didn't, the app would close. So, I finally gave up and bought a new Air. So, I figured I would set the original back to Factory. It made no difference, so I'm guessing bad Ram. Is this something I can replace? I don't know if the original is worth paying to have fixed.