Ios 6.1 killed my battery life

Yes I am having the same problem also. Updated two days ago my phone is lasting about 3 hours Max!!

Not happy Apple !

I finally got my problem solved. A friend/colleague of mine suggested that it might be related to the (work) Exchange account I had set up on my phone. He had experienced a similar problem with the iOS 6.1 *beta* on his phone, and had eventually isolated it to a problem upon upgrade that was solved by:

1. removing the Exchange account (delete account); then
2. rebooting his phone (hold down power; slide to turn off; wait; turn back on); then
3. re-adding the Exchange account.

He also pointed out that one can view the console logs from the phone by running Xcode on one's Mac while the iPhone is plugged in (via USB). I had not realised one could do this, but as soon as I did I immediately saw it scrolling Exchange errors about an ASMeetingResponseItem with an error:

"<ASMeetingResponseSingularResponse: 0x12345678>: RequestId (null) status 4 eventId (null)"

These errors were occurring every second, if not more, and the activity causing the errors was therefore keeping the phone wedged in an active state, eating battery.

So, I performed the steps he suggested (remove Exchange account, reboot phone, re-add Exchange account) and my problem was solved! 🙂

This may or may not solve the problem for the rest of you, but if you have a Mac and Xcode (and if you don't, you can get it using the OS X App Store application) you can definitely try looking at the console logs from your phone, and they might at least provide hints that might help lead you to a solution.

Regards,

Stephen

P.S. It is worth noting that I also know people who *do* have Exchange accounts set up on their iPhones, who upgraded to iOS 6.1, and who did *not* experience this problem, so it may involve a race condition or some other circumstance that involves randomness as to whether it happens to you or not, or it may depend on the characteristics of the Exchange server you connect to, or it may depend on some state related to your calendar (like whether you have meeting invitations you have not responded to yet, or have / have not responded using your phone, or ..... The possibilities are more or less endless so, while I do think this was a bit of a QA problem, it can be hard to find bugs that are hard to reproduce or only hit a small subset of users.

P.P.S. The step #2: reboot phone ... is really important. For whatever reason, the problem doesn't stop until you reboot the phone. Perhaps it doesn't activate the configuration change until then. More likely the errors are a process/thread stuck in a loop that is looping tightly without a check for whether it should stop trying.

The same problem with battery after upgrade(((( Who knows how can i back to previous one?

[IMG]http://i50.tinypic.com/23j1f0y.jpg[/IMG] your getting way better then what I am ... 1000$ paper weight is right :(

Hello,

I have the same problem, yesterday my phone had 82% battery at around 2 pm, and to my astonishment at the 8 pm was 31%. The gps, wifi, data were turned off and no calls made ​​or received

It was on standby.

It is the same with you?

I think that Apple should replace the equipment because I think even with several updates this problem will never be solved.

This is my first iPhone but I'm very disappointed

Yeah it is the same thing that is happening to me . My wifi , Bluetooth , brightness is at around 30% . My push Notifications are completely off . Every thing that kills battery is off ANC not running . And my phone still losses about 1 % about every to mins . It's sad . I'm very disapotied with my first update to 6.1

Hi, thanks for this mavjop, it fixed my battery issue returning my phone back to normal. The problem had been causing me real issues since updating to iOS 6.1 on my iPhone5 so many thanks for taking the time to post.

If anyone else uses work/exchange mail you should try this as its likely to resolve your problem.

I had the same problem. I found the solution for anyone that hasn't already. It seems there is a bug with IOS 6.1. IOS 6.1 will cause your email to start constantly sending or searching for email draiing your battery and driving up your usage.

The SOLUTION: delete all your email accounts. Power down your iphone. Power it back up, reload your email accounts. It worked miricles for me, but not before the bug drove my usage over the limit and ATT charge me an extra $20.

No one's mentioned this yet, so ...

I found my phone connects to 3G even when 3G is switched OFF in settings. I always keep 3G off, and the moment I finished the 6.1 update the 3G sign came on.

Switching cellular data off gets rid of it. I take the point that it turns a £500 phone into a £50 phone. The only reason I upgraded is because not upgrading to the update before caused even more connectivity problems!

Of all the 'improvements' i receive on hardware/software, Apple's are always the most problematic.

6.1 has killed my battery life too. No change in my usage, I charge my phone at night and right now I'm on 33%. Before 6.1 I'd be around 75% at this time of day.

I too have this same problem. My phone (4 non-S version) gets very hot and drains the battery akin to having flushed a toilet. Whoosh its gone. Began happeing right after applying 6.1 Horrible update Apple. One that needs a patch ASAP. I can't have my phone tethered to a power cord. Under those circumstances, it's not that much better than a land-line.

As I found, delete all your email accounts, shut down your iphone, power it back up and reload your emails. Your battery is draining because your email accounts are now constantly sending. Apple needs to fix this.

I tried this and Unfortunately it didn't work but thanks for the suggestion maybe it might work on someone else's it doesn't hurt to try.

The Exchange account delete - reboot - recreate Exchange account fix listed earlier in the thread, seems to have provided relief. My phone doesn't appear to be draining like it was nor does it feel hot to the touch. I'll let it bake (or not as the case may be) for a day or two and report back if it is still draining.

This seems to have done the trick. I confirmed the scrolling ASMeetingResponseItem messages in console with XCode (awesome debugging tool), removed my mail accounts, rebooted, and re-installed mail account. So far no more scrolling console messages.

Thanks!

Brian