My friend's mobile internet i.e. 3g, H, gprs etc isn't working anymore. He left his house yesterday and was out of range of his home wifi. However, his mobile internet did not work and when he uses apps that require the internet such as Twitter, it says a network error has occured.
He updated to Gingerbread via Kies three days ago and no problems occured whatsoever until yesterday.
He has checked his mobile network settings and restarted his phone, but no joy.
Any ideas guys? Thanks!