So I have had my S2 for about a week now, and when i got it the 3G was working fine. I kept it off most of the time to save battery, but now it doesn't connect at all. If I turn it off and back on, the Data Network Mode is always turned off, but even when I turn it back on nothing appears in the notification bar and I cannot connect to the internet without wi-fi. Just tried doing a reset on it, the only thing I could find was "Format USB Storage" but that didn't fix it. Any ideas or is my phone faulty already?