From a few months i m having this problem with facebook on my iphone. Everytime i go on it, the screen becomes blank. Several times i have deleted fb from my phone n then downloaded again. For a few days its fine but then again the same problem occurs. Does anyone know how to fix it?
It could be there is a problem with the Facebook application on the iPhone. You can try and reinstall it to see if this will fix the problem. You can uninstall it first and then try the restore function through iTunes.