Q: iOS 6 iPhone 4s battery drain

i have had an iphone 4s for like 3 weeks now... but i had to take the original phone back because i had horrible battery drain after my upgrade to ios 6 .. i took it to apple and a genius said i had a corruption in the phone she said somehow things went bad during my upgrade to the new ios 6... however even after fixing the corruption i still noticed the battery drain... so i took it to apple a second time and they switched out my device on the spot and since then my iphone 4s with ios6 has been running fantastic... my battery lasts all day and night and im a heavy user...

just to let you know... unless your really cool with an att rep.. they wont take back a replacement device.  only the original

I also went to the Genius Bar today, and explained the issue.  He said the battery seemed healthy (he used some software), but he changed out the battery for a new one.  So far it seems the same.  I'll have to use it a few days to see if it makes any difference, I guess.

All,

I was experiencing the same issues, exessive battery drain, after updating to iOS6. As I it has happened before, I knew I would have to do a restore as a new phone to be able to get rid of any corrupt files. Since I did so, my battery has gone back to normal. 

i wanna ask ya if u suffer'n from wifi problem ??

No wifi issues here, sorry.

I just noticed a new problem that might be another contributor to my battery drain issue: my 4S is not auto-locking in 1 minute as I have it set. That along with the auto-brightness not working properly I am thinking the upgrade via USB/iMac method was faulty. This issue is not just for the OTA folks. Btw, I've removed my Exchange mailboxes and didn't see any improvement. Still waiting for an update before I do any resets or revert to iOS 5.1.1. Hurry up Apple, you've crippled my iPhone 4S for more than a week now.

Restore your OS and start as a new phone. Do not restore from back up. You'll be able to download all your purchases via itunes or app store later. It should fix most problems.

Why should we have to that do?! I'm not willing to part my user app data just yet, some of its too important to just forget. If I want to setup as a new iPhone I would have bought a 5.

I agree.  It is good to know that nuking it to a clean install may fix it if you're willing and want to figure it out, but it's very non-Apple to leave people hanging.

Customers trust Apple and do zero-day updates much more than other companies because we trust Apple to make it right quick, at least I do.  I know applying any update day-one makes you a little bit of a beta tester "pioneer", simulations and prep only take you so far.  So far for me, I do hold Apple to a little higher standard and I know they expect it too since that's one of the things you pay for going Apple.  Come on Apple, let us know you actually acknowledge this issue and are on it.  I know all 1.0 versions have some kinks, but this is important.

No WiFi or Maps issues here.  All else is great for me actually.

No wifi issues here either.

You're not going to lose anything, except for your text messages. You can always back up your pictures and the like. Your emails, if you use any of the common services (gmail, icloud), will be there when you reestablish your accounts in the phone.

I know it shouldn't have to be like this, but you have the option to stay suffering because of poor battery life or take a few extra steps to fix it. I'm not trying to defend anyone here; all I'm trying to do is help a fellow in need.

Same problem IOS 6 Killed my battery life my 4S wouldn't last half a day with a full charge!!!

Not true. Many stand alone apps have user created data stored in the app that cannot be restored if the app is removed then reinstalled, and the same can be true for many, many games (albeit games are slightly less important, but it still stinks to have played something or a year and then lose all progress).

I understand.  Some comics I have "save states" of what I read and where I'm at.  Restoring from scratch almost always loses something, even if it remembers what you own and dowloads it all new.

I plunged in knowing it's not the end of the world if my zero-day upgrade had some bugs.

Still, if you've been synching with iTunes, has ANYONE noticed this issue persisting if you just restore iOS5 from backup?