- Oct 13, 2011
Hello, I'm new here. I just updated a 3GS to iOS 5 last night. It took a while but it finally upgraded. The only problem I have is that it went from 100% charged to 0% overnight without even looking at it. I've been trying to turn push notifications and stuff but it still drains like crazy. Anyone else noticing a big decrease of battery life since upgrade? What are the major things to turn off to make the phone last longer? Can I go back and reinstall previous iOS? Help! Thanks!