interesting... i did not know the phones xmit varying signal strength as required
Posted on 06/27/2010 9:33:41 AM PDT by PugetSoundSoldier
Interesting, and it's been reported at other forums, too; however, I have only linked the Apple Support forum thread.
First post of that thread:
I was having the same as everyone else... loosing 1% every 3 minutes...I took email complety off and still was loosing 1% every 8 minutes...called apple restore..didnt resolve...went to the Apple store and they swapped my phone out. Hello 3.1.3
And there are dozens and dozens of other reports like that, in just that thread.
(Excerpt) Read more at discussions.apple.com ...
Ping!
interesting... i did not know the phones xmit varying signal strength as required
Two people I know are tearing out hair (theirs and tech support people's) because their new touch screen wonder-phones, from different companies, are only good for an or so hour at a time.
Yeah... Cell phone networks operate in the lowest possible power mode, but if your reception is weak, then the phone looks for a stronger tower to connect to (and to find towers, it bumps to full-strength transmit). If it cannot find a stronger tower, then it boosts it’s own output to improve transmission, and continues scanning.
If you’re in a nicely covered area, your battery lasts forever; go out to spotty coverage, though, and your battery life dramatically drops.
Note that the antenna issue would be a separate physical issue, but if Apple didn’t get the logic correct on the power switching, or if the software doesn’t handle the antenna degradation properly, it could be kicking the output power into high-power mode incorrectly.
This might be a case of a hardware flaw being masked in design by a software redesign, only to find that the two are complementary in the wrong direction - the exacerbate each other. Since it affects 3GS phones updated to iOS4, this is the most likely situation (software optimized for the iPhone 4 antenna means it may create problems for earlier phones).
Nevertheless, there’s a lot of upset people on the Apple (and other) forums over the lack of battery life. Especially since some journalists who got pre-release phones were reporting 30-40 hours of operation time. Something’s changed, obviously, between the review units and what the customers are receiving.
I think the word “fail” is starting to emerge on this new version of the OS as well as the new hardware.
i thank you sir for that info/explanation
I has iOS4 on a 3GS; so does my wife.
Neither of us have these issues.
My pleasure! It’s an improvement over the old analog phones if you’re in a well-covered area; outside, that, and you’ll be wishing for those huge bricks with monster batteries, or a stack of extra batteries (I have 2 spares, since sometimes I spend a few days in really bad cell locations, like the NE mountains of Thailand, or the Chinese countryside).
Not for me. The battery life on mine is fine. The OS is great and the retina display is awesome.
My meager experience has been that it’s not transmitter strength that causes battery drain when reception is poor. It’s the “searching for network” that will suck the life out of the battery. I had a phone that had a battery that would last for a couple of days if it had a good net connection, but if I spent any time (like an hour or two) in a dead spot, Poof! dead battery.
We have a lot of wishful thinking on this thread. My friend and I bought our new iPhone 4 on opening day. Both of us are thrilled.
swearbymacs
Re: iOS4 Burning Through Battery Life? Posted: Jun 23, 2010 8:37 PM in response to: SilverSwordZero
ok.....here's the deal. I do not have an exchange email account. Yahoo, Gmail and a pop email. Push is not the problem with exchange. It is the fact that until you go to "internet tethering" and cancel when prompted, the battery continues to drain. You have to do it when in wifi, then same thing in 3g, then again in edge.
If you dont automatically get prompted, click on the internet tethering bar, wait a few seconds and a menu will come up. Click cancel all 3 times. Then do a hard reset of the phone. Power and Home button at once until you see the apple come back on.
Go back to internet tethering and it will spin for only a couple of seconds and then prompt you again. Click cancel again after all 3 times as described above. THAT WILL FIX THE PROBLEM.
Just did it on 3 iphone 3gs in my house. Fixed all 3 of them. Battery horrible on all 3 then after completing the steps above, battery on all 3 is as good if not better than version 3 software.
AGAIN....NOT AN EXCHANGE PROBLEM....NOT AN APP PROBLEM....NOT A MULTITASKING PROBLEM. Follow these steps and it will fix your 3gs running ios4.
imac 20 aluminum Mac OS X (10.6.4)
I'm not an Apple user, so I don't know how accurate or effective the above would be.
Apparently, this fix is for the 3G iphone. Might work for 4G, might not.
Just providing the info for others to try.
I have a 3Gs but I don’t know how to get to the “edge” setting.
thx...
Bookmark for IOS4
I downloaded that ios 4 for my 3GS - no problem so far. Love my “old” iPhone and didn’t want the new one anyway!
Just think, a phone released only 1 year ago (almost to the day) is now considered "old" and obsolete!
And a phone released in early 2008 (1st gen 16 GB) is now so "old" that it is not even supported any more by the factory.
Things move a bit too fast sometimes...
I had a phone in the past when you used GPS it would never turn off even if you closed the app. I wonder if something it being left on when it shows as off?
If so, I also wonder if there are other more serious issues/mistakes in the iPhone. you know ones that would lead to security issues. Kind of like the pin not really working even though it appears to.
That isn’t a problem. You have to use the Apple bar sorry phone tongs. Available at Home Depot. Next to the large forks.
LOL!
My 3GS with the iOS4 upgrade has been great.
“I have a 3Gs but I don’t know how to get to the “edge” setting.”
I don’t even know what/where “edge” is, LOL.
But in high school, many years ago, the vice-principal (chairman of the ‘board’) told me I often walked too close to the edge, heheh.
Your Apple iTongs have been made obsolete. I give you the iGrip:
Steve Jobs approves!
SM,
Re post 19. I just updated to IOS4 and am seeing battery life issues. Since I use the Map feature often (travel baseball for my boy and traffic jam checking) it occurred to me that once you change to a different app that Map could continue to run. I checked and it was. Is it possible to disable multitasking or am I stuck with having to manually end power-hungry tasks like Map?
bump for home
Don’t have iOS4 on my 3GS yet, but I believe there’s a “task manager” function where you can kill background apps.
Don’t know the touch sequence to get to it though.
I can kill the Map App by double tapping the home button, then holding the Map icon on the task bar for a few seconds until it “wiggles” and then hitting “x”. What I’m looking for is a way to universally disable multitasking so I don’t have to go through the multiple step process.
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