iPhone 3G w/ OS 3.1 - Problems (Slow operation)

I have very poor battery life after 3.1 too.

The phone overall seems slower in operation from time to time.

The phone acts funny when waking from sleep or putting to sleep. It hesitates mainly.

Some of my mail is returning an error saying that I did not specify an email address recepient, even though I did. I have to delete the email and re-write it and then it sends.

Same problem here. Right after upgrading to 3.1, I get several shutdowns throughout the day. Which is a pain in the ***, obviously, because I miss calls, meeting reminders, etc. Also, battery seems to drain more quickly. I keep it plugged in all night, and probably 4 hours or so at work, and at night again it's running on fumes.

Hi!

I'm running Snow Leopard 10.6.1 / iTunes 9 on my MacBook Pro (Late 2008) and put Firmware 3.1 on my iPhone 3G 8GB the day after release in September. Running 3.0 everything was very fine and fast. With 3.1 I have several problems during the daily use of my iPhone, most of them already described here. The battery seems to run out faster, the number of connection drops has increased and the overall response time has become worse. To make the 'slide to unlock' screen appear it take several seconds ⚠ after pressing a button on the device to make it wake up. The actual sliding is very inresponsive and sometimes doesn't animate anything. If running, writing an email or SMS is incredible slow: Typing a whole word with multiple characters while nothing happens on the screen. After a while, all the animations come up at once, finally showing the word on the display. In my opinion my phone is more or less useless.

I already tried some of the suggestions: Restore the iPhone from Backup or remove any 'Battery' App - none of them solved my problem. If possible I would not restore my phone from scratch, so are there any newer suggestions? As I just read, Apple is already investigating the battery issue, hopefully this will resolve the slowed down/bricked iPhones, too.

Best Regards,
Benjamin

I found that it's any form of CalDAV sync that kills my system after the 3.1 update. I shut off MobileMe calendar sync thinking it was the problem, and sure enough functionality was much better. But when I setup a CalDAV sync under "other" from the Mail, Contacts, Calendars menu, the iPhone immediately became sluggish and unresponsive. Shutting that down put it all back to rights. At least for me, this problem seems isolated to that service. BUT, not using that is a serious pain, since that's why I bought the d#$m device in the first place!

After installing 3.1 update, I noticed some freezes while scrolling and other similar activities; battery life changed, but I can't say dramatically, maybe around 20-25%.

Add me to the list of those unhappy about this update.

Your post pretty much covers all the problems that I'm experiencing. It's quite annoying and it's good to see I'm not the only one suffering from these problems. Hopefully a fix is released soon.

I have many of the same issues. Seems related to phone operations on 3G and waking/sleeping/phone event interruption of other apps. I have a 3G and it is very intolerable. I have phone crashes in my crash log.

Fix immediately please!!!!

My iPhone displayed the horrible slowdown after the update as well. Most pronounced when flipping app pages.

Solved it (for now) by making sure my email was not set for "push" or to perform a get at any interval (I had it set to retrieve my mail every 30 minutes). Since going to a completely manual retrieval of email from within the mail app, my iPhone has shown no slowdown at all.

Hey Apple, test much?

"Slow Backup" after upgrading is NOT a legtiamate issue.

At one time, backups always took a LONG time. Then, during an earlier update, it appears the backup ONLY backs up changed files, so it goes faster.

When you upgrade to a new version on the phone, just about EVERYTHING is change din some way... Therefore the firs tupdate ALWAYS takes a long time ONLY after an upgrade...

The ones after that are always fine...

That i the same with this upgrade.

We have a major battery issue... so please lets not get normal issues in the way of the real problem that is totally affecting thousands or millions.

I agree.. downgrading would be welcome right now.. anything to stop this battery issue ASAP.. this is NOT something that can wait.

Apple needs to fix this ASAP... PERIOD! This is affecting users all over the world and I have not been able to use my phone properly for days! Slow overall operation, random unexpected shut-downs, cannot make or receive call at times... all since the upgrade to 3.1. This new Iphone OS acts like it is virus laden!

Apple... NEW UPDATE PLEASE!

Again, every issue here described is an issue with my iphone since the upgrade. With four iphones in the family 3 out of 4 are showing problems, some worse then others. Mine of course seems to have all the issues mentioned.

Please Apple lets get this taken care of. After talking to friends about the wonderful features of owning an iphone, many of them have gone out and purchased one. Please don't make me look like an A**.

The problems outlined here describe exactly the issue I'm having with my iPhone 3G.

Is there any simple way of reversing the upgrade to this operating system, and just going back to 3.0? My phone is virtually useless at this point. Given that we are usually joined at the hip as my daily planner as well as phone, etc etc, I feel a real sense of humour failure coming on.

It's also irritating in the extreme that there doesn't seem to have been even a 'thanks for raising the issue, we'll get right on it' message from Apple.

A suggestion to readers of this thread that are only posting their "yeah, me too".

At least try some of the many suggestions that have been posted here, including mine:
http://discussions.apple.com/message.jspa?messageID=10245120#10245120

If you aren't willing to even try and fix your issues, you're only adding fuel to an existing inferno. If you have tried some of these solutions, *post your results, not just complaints*.

Deleting and resynching calendars fixed the problem for a few hours. Now it's back again and as bad as ever. Deleting some apps has made no difference. Fiddling with wifi and bluetooth has made no difference.

My iCal does sync to some webdav calendars (icalx.com). After every reboot iPhone 3.1 pops up a prompt for the icalx password. The hanging happens whether or not I give the password. To me this implies that the phone is synchronising directly to icalx.com, not via Mobile Me as I thought it did. Is anyone else seeing similar behaviour? How do I prevent iCal from syncing my subscribed calendars to Mobile Me? There seems to be no control of this in Mobile Me itself.

I had precisely this problem (using icalx.com as well!). I finally had to shut off the MobileMe calendar sync and use iTunes to sync those calendars from iCal. I was also unable to find a way to change this directly in MobileMe. Phone runs OK now, but really stupid. It is definitely a bug that needs to be fixed.

Message was edited by: goatdog