What do you mean by "everything works except chat"? I'm struggling with this malfunction, which has been also reported by others: It shows up in the "feed" section of the home screen, but not in the "newsfeed" section of the app. IMHO it is far away from "working" - newsfeed cannot be updated directly on stock FB app, but only by refreshing feeds on the homescreen. Do you also experience this bad behaviour ? Or maybe there is a way to fix it ? Cheers!