In the past day I've been getting a major battery drain issue happening with my iphone 3gs. I'm on tmobile, ios 4.1.
I used to be able to run, wifi, edge, location services all on, and still have my phone last 2 or 3 days without a charge on standby mode. But now, the phone is dieing in less than a day.
The only thing that I can think of that is different is that yesterday I tried to pair a Bluetooth speaker with my phone. I've since turned off Bluetooth on the phone so I don't think that's the issue.
I've tried, rebooting, turning the phone on and off but I still have the battery drain issue.