37082 Views 89 Replies Latest reply: Oct 18, 2011 12:09 PM by stefanfromhvidovre
Currently Being ModeratedSep 10, 2010 8:45 AM (in response to rwillia532)I took my phone in last night to the genius bar at the annapolis mall.
They wiped the phone again, did a firmware reinstall, and still every problem I had going into it is still present.
They did decide that since I have AppleCare that they will replace my phone; however, they didn't have any in stock to replace it with, so I get to wait a week or so to get a new phone.
1.5 hours of usage since last full charge, 0 usage time, less than 17 megs total sent and received, and it's below 20%.
Message was edited by: rwillia532Macbook, Mac OS X (10.5.3)
Currently Being ModeratedSep 10, 2010 10:01 AM (in response to Mitchf1)My battery life is fine, but it was also fine before I updated to 4.1 last night. So far I'm showing 16 hours since my last charge, and I'm at 91% battery. Light usage, granted, since I was asleep for most of that time, but I have no complaints so far. I wonder why some are having such a problem and others are not — strange. I'd go to the Apple Store and talk to a genius, I think. MacBook Pro i5 2.4GHz, Mac OS X (10.6.4), Airport Extreme, iPhone 4
Currently Being ModeratedSep 10, 2010 10:57 AM (in response to Mitchf1)My battery now go down fast as ****.
When is it in standby cellular data have a lot of exchange.
What's the problem then?
I logout and disabled any invite but it seems that transmit and receive data.
I made a reset recovering from last backup.
Double click on home without touching any other application and what i found?
Game center in multitasking bar.Assembled, Windows 7
Currently Being ModeratedSep 10, 2010 11:49 AM (in response to Bluevex)I think I may have solved my battery drain issue... If it doesn't fix it I'll post back.
I went to Settings->General->Reset and clicked Reset Network Settings.
My battery "bounced" up from 92% after no use and 1.5 hours of standby to 96%. I am now at 1 hour of use and 5 hours 25 minutes at standby and have 90% left.
I think that may have done the trick. The only thing I lost was the network passwords...iMac, 24-inch, 2.93GHz Intel Core 2 Duo, Mac OS X (10.5.6)
Currently Being ModeratedSep 10, 2010 12:00 PM (in response to Mitchf1)Yes, I have also seen my battery life decrease dramatically with the new iPhone OS 4.1. Funny I have never had any problems with my last two iPhones 3G and 3Gs. But I've been having numerous problems with the iPhone 4 and the new IOS 4.x . I'm really starting to believe this is Apple's VistaiPhone 4, iOS 4
Currently Being ModeratedSep 10, 2010 12:14 PM (in response to Mitchf1)If you do a full cycle charge a couple of times the battery should return to normal. There is a post about poor battery life every single time a new firmware update comes out. Allow the battery to drain down to 0%, then charge it to 100%. Repeat this once or twice. If this doesn't work do a full restore (not from backup) and repeat the full cycle charge.iPhone 4, iOS 4
Currently Being ModeratedSep 10, 2010 12:24 PM (in response to jdnyc614)Spoke to soon. I just had a 20 minute phone call and it dropped my bettery 10%.
At this rate - my phone will not last 4 hours of use, where before update, I continually closed in on 8 hours of use.iMac, 24-inch, 2.93GHz Intel Core 2 Duo, Mac OS X (10.5.6)
Currently Being ModeratedSep 10, 2010 5:46 PM (in response to Fluharty)No, battery life is NOT an issue with 4.1. I see no difference from 4.0.x, which was MUCH better that 3.1.3. If you have a battery problem there is something else the matter. After EVERY update over the past 3 years some phones exhibit battery problems. Not very many, but if yours is one it is very frustrating. there are solutions that do not require downgrading, however; you can find them by searching the forum. For evidence that this is not just a 4.1 problem, see these threads:
3.1.3 battery problem
OS 3.1.3 battery issues
3.1.3 upgrade - shortened battery life?
Battery life cut after 3.1.3 update on iPhone 3G
3.1.3 Firmware is a battery killer - how do I back out this upgrade?
Poor battery life with iPhone 3G running 3.1.2
3.1.2 EXTREME battery drain - what gives?
3.1 Battery nightmare
iPhone 3GS with fw 3.1 – battery life gets even worse
Battery Issues with 3.0.1
BATTERY drain with 3.0
upgrade to 3.0 drains my battery
Battery Drain after Update 2.2.1
Battery Life Radically Decreased after 2.2.1 Firmware UpdateLenovo T-60, Intel iMac , Dell/Ubuntu 8, iPhone 3GS iOS 4.0.1, Windows XP Pro, Leopard 10.5.4
Currently Being ModeratedSep 10, 2010 6:57 PM (in response to Mitchf1)Not sure it's the update -- have you checked your background apps? My iPhone 4 with 4.0.2 had reasonable battery life until about a week ago, then it began draining from 100% to 0% overnight. After several rounds of troubleshooting, I found that there were 39 apps running the background. After shutting them all down, everything is back to normal.
How to shut down background apps:
1. Double-click the home button to display background apps
2. Hold down an icon until they all start to wiggle
3 Press the - sign to shut down the app
I don't recall ever multi-tasking with most of these apps, and they kept running through several resets. So my question is why don't they clean up after themselves?
Anyway, I kept a log which I'll paste in below. As you will see, none of the standard recommendations (turn off locations services, turn off push, increase fetch interval) had much effect. I never turned off WiFi or 3G, and it appears I don't need to. Here are my results:
Friday Night - charged to 100%, turned off. Drained to 0 overnight.
Saturday - turned location services and push off. Charged to 100%, turned off. Drained to 32% overnight.
Sunday - Drained to 0 after 2 more hours -- with very little use.
Monday - Shutdown all background apps (39), charged to 100%. Still at 100% in the morning.
Tuesday - 92% at 10 PM. Charged to 100% and turned on fetch every half hour.
Wednesday - 88% at end of day. Charted to 100% and turned on push.
Thursday - 85% at Midnight.
I now check for background apps a few times a day, and always before turning off for the night. Hope this helps.
davidiPhone 4, iOS 4
Currently Being ModeratedSep 10, 2010 11:23 PM (in response to darkfire.shadows)unfortunately the reset network settings not solving the problem! I made the same yesterday and nothing changed at all! Today I will try to reinstall the 4.1 again on a mac and if no progress on Monday I'll give it back to Steve with many thanks! otherwise it's unbelievable that there is no reaction from any apple professional about this serious issue here at apple site....iphone 4, iOS 4
Currently Being ModeratedSep 10, 2010 11:28 PM (in response to lokeswari)i and i think a lot of people here tried already this steps (on mine esp. there was no background apps running nu push applications no wifi no mails ) and during last night from 100 decreased to 76% my battery and I didn't speak to anybody while I slept, I hope...iOS 4
Currently Being ModeratedSep 10, 2010 11:59 PM (in response to Mitchf1)Updates for Iphone look like a Russian roulette.:) Last time when I update my old 3G with the IOS 4, become a so slowly. Impossible to use it.
This time I will not install 4.1 to my Iphone 4.iOS 4