Hi guys I have just tried to install an app and it would not install, so I tried to install a different app and that app would not work either, I then decided to close down the app and re open it and now it will not even open it!! It crashes and takes me back to the home screen before I even get a chance to do anything I have force stopped the app cleared the data and cache and it still doesn't work. I cannot find anything to help me open it the only thing I can think of doing is doing a factory reset but I don't know how to back up the phone before doing that. I am using a HTC One X Plus.