Ever since I updated my Facebook app to 4.0.2, I haven't been able to receive notifications. All the switches in Settings > Notifications are set to 'on', but still no notifications. Does anyone know how to fix this?
I am having the same problem but only for messages. I figured out a quick fix, I downloaded Facebook Messenger and it sends notifications when someone sends me a message. Trying to get ready to go to Mexico without using my data!