How to work facebook app in iphone 4?

Actually i'm using iphone 4 with 5.1.1 version. But there's a problem with new updated facebook app version of 5.1.it is not working in my phone.hen it opens blue & white screen appering,. Guyzzz hep me to solve my pbrlm…

Specify research

Try refreshing your iphone… Hold down the home and sleep button and kep holding them until you see the apple apear, sometimes iphones just need a little nap.

  • Will Facebook work in China if I use the app on my iphone? I know Facebook in china is blocked, but will it make a difference if I use the app on my iphone. Has anybody here been to china and tried this?
  • How to put on a profile picture on facebook using the iphone facebook app? Well i recently just joined FaceBook as all my friends were telling me to get it. Anyway i have the app on my iphone4s and i want to have a profile picture. In my camera roll i clicked on the arrow and then facebook but it then it says post. Also i tried going onnm profile and clickin on the actual profile pic bit but nooothing happens when i do. When i upload a profile picture will this mean that it will post on my wall aswell? Any help please i'm so confused!
  • How to get an iPhone app to forget all its data when deleting the app doesn't work? I want to make an account in the hellotalk app, but it won't allow me to have more than one account per device. I don't remember my old password and no longer use the email address that I used to make that account, so there's no way I could recover the account. I tried deleting and redownloading the app, no luck. It still remembers me. Anything else I could do?
  • How to control Facebook chat settings on Facebook iPhone App? Go offline? Hi so I know that you can go "offline" on facebook mobile chat. But even offline, any time you use the Facebook app on the iPhone it shows that you are "active" and will even say the last time I was logged on. Is there a way to go completely "invisible" or just put everything on the mobile app private?