O.K. so, I have a problem because when I attempt to turn on my WiFi it won't turn on, says Error. Bluetooth won't turn on either. And my Volume button is unresponsive. Also the battery seems to have emptied in less than half a day. I did a full factory reset and still no improvement. This started to happen yesterday, and since I read somewhere that it may be an app update I looked through apps that were updated that morning (I know that the WiFi was o.k. because I download updates only on WiFi at home) and it was things like Facebook, Angry Birds and similar... could this be the cause or is it just a coincidence? I did not drop the phone or any such thing (I dopped it once, about 2 months ago), it is now 5 months old, on 2.2.1 software... Any ideas on what could be done or do I just call in the warranty? Thanks.