As you know, the update to iOS 6.1.3 was released about a week ago. The principal reason of this update was to fix a bug that could allow someone to bypass the passcode and access the Phone app and also some improvements to maps app in Japan.
With update 6.1.3 some users have problems with battery autonomy, according to some users of Apple forums.
Last night I updated my iPhone 4S to iOS 6.1.3 and now it drains my battery in extremely fast manner. As I started signing in to write this question from my iPhone I already lost 13 percent of my battery. I never had a problem with a battery and I’ve been using iPhones since the first one. I’m not sure if the software varies at all between carriers but I’m on AT&T, not Verizon. My phone would hold 100 percent charge for over five hours on standby. Now within an hour it drains to 85 percent.
The problem is that no one knows the cause of this bug and as yet not found a solution to fix it. You have this problem with your iDivice after iOS 6.1.3 update?