RE: [Fed-Talk] Snow Leopard transition creates problems
RE: [Fed-Talk] Snow Leopard transition creates problems
- Subject: RE: [Fed-Talk] Snow Leopard transition creates problems
- From: "Kerwood, David R CIV NUWC NWPT" <email@hidden>
- Date: Thu, 1 Oct 2009 15:49:53 -0400
- Thread-topic: [Fed-Talk] Snow Leopard transition creates problems
I'm doing a slightly different experiment. I set the phone (3G) to call forwarding to another mobile phone, but 3G connectivity is otherwise intact. Mail, web, and GPS all function normally, and I've stopped looking at the unending "connecting" message when getting mail, because it appears to connect and get mail just fine in spite of that. I'm now on my second day without recharging, the phone hasn't been powered down, and I've still about 2/3 battery life left. Based on this observation, it's the phone function that's really pulling down the juice.
David Kerwood
-----Original Message-----
From: fed-talk-bounces+david.kerwood=email@hidden [mailto:fed-talk-bounces+david.kerwood=email@hidden] On Behalf Of Todd Heberlein
Sent: Thursday, October 01, 2009 15:32
To: Dave Schroeder
Cc: email@hidden Talk; Pike, Michael (IHS/NPA)
Subject: Re: [Fed-Talk] Snow Leopard transition creates problems
> I agree that there are problem reports with 3.1. However, as a large
> site deploying these devices, I can say that we have not had a higher
> incidence of issues. In fact, anecdotally, many with issues have been
> people who have previously jailbroken or otherwise hacked their
> devices.
There is certainly a lot of complaints about the battery life following 3.1, and Apple is taking it seriously. They have even distributed a special questionnaire to a sample of users who have reported problems as well an application called "Battery Life Logging".
http://www.theiphoneblog.com/2009/09/20/apple-seeking-info-iphone-31-users-reporting-poor-battery-life/
Interestingly, Question 10 is "When you notice a power drop, does it seem to be a legitimate power drop, or rather an issue with the battery icon indicator?"
I have certainly noticed this. When I reboot my iPhone (which I do about once a day -- under 3.0 this seemed to help with accessing the network over AT&T), or when I switch between 3G and Edge (as I did today), the battery life indicator can change dramatically.
I have also experienced much worse battery performance since upgrading to 3.1 the other day, so I've started some of my own experiments. My hypothesis is that the problem is either in the 3G protocol stack or the Mail application because often when I check mail, the spinning progress indicator seems to go on forever now and this even causes weirdness when shutting down my iPhone.
For my first set of experiments I've decided to keep 3G up but shutdown both Mail accounts (Mobile Me and an old POP account). After a day or two of testing I'll reverse this and shutdown 3G and re- enable the Mail accounts. If I find any differences, I'll post them here.
Todd
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