I recently bought an iphone 3g it worked fine for a few days but now, it wont turn on. I plugged it into my computer to charge it and it showed that the battery was dead, so i let it charge for about 30 minutes, then it showed that it was in recovery mode, when i try to unplug it to get it out of recovery mode it wont turn on, does that mean its the battery?Everytime i plug it into my computer it automatically goes into recovery mode and when i unplug it, it turns off and and wont turn on. Can anyone help me?