Mysterious random total shut downs following 3.1 update

If it works fine in other places but not at home, have you checked your router, particularly since you think that it's wifi-related?

Haven't tried wi-fi outside of the house. I've turned off wi-fi right now and it seems to be working fine. I would suspect the router except that it has worked fine until the update.

A workaround temporarily avoids the problem, i.e. "works around it".

Resetting iPhone is not avoiding anything here or working around the shutdown.

A true workaround would be one to avoid the random shut down.

E.g. when a vulnerability is announced for a specific service, workaround is turning off that service until patch arrives so you can keep working.

At the moment there's no viable workaround for these unwanted shutdowns.

Message was edited by: rrahimi

Updated to the new iPhone software and iTunes 9 today.

Immediately, my phone was possessed! I have never experienced ANY problems w/ my 3G, even though others have, until now.

Here's the list:
- Phone randomly locks up and/or shuts down
- Forget Facebook . . . it stays up about 30 seconds and shuts down
- Battery charge icon said full in upper right. Then gives me the red 20% battery emergency.
- Can't stay connected to WiFi . . . any of them.
- Can't remember any passwords . . . for anything. I put it in, go directly back in the app (Facebook, WiFi, other apps), and it asks me for the same password.

I should have checked here first. I never would have thought that Apple would have distributed such a crap update. Ever!!! I have hard-booted. If anyone has other ideas, I'm ears. This stinks. Of course, going out of town and need the darned thing!!!!

Yep - same issue on my iPhone 3G after updating to 3.1.

Phone seems to randomly lock up and requires a hard reset to get working again.

I'm going to try and downgrade to the previous firmware to see if that solves the issue.

prior to upgrading yesterday, my 3g has been reliable for the last year. battery lasts 1 day or 2 days with light use.

today, my phone has crashed about 5 times, including a few times when i wasn't even using it. today, the battery went completely dead, i charged it up about half way and then a couple hours later, it was dead again. so just judging from the battery life, something is definitely wrong.

in addition, the phone sometimes becomes very sluggish and unresponsive - for example, in some cases, it take several seconds to even respond (wake up) from sleep when pushing either the power button or the home button.

google maps normally works great, now it starts up and just shows a blank screen for 10 seconds, then the app quits and goes back to the home screen.

so for me it is black and white. not a subtle question of whether performance or battery life is slightly better or worse after the upgrade. it is black and white. phone was great before the upgrade. essentially unusable after.

I think I just found the root of my problems. MobileMe is now syncing all of my subscribed calendars in iCal to my iPhone which it has never done before. I disabled MobileMe calendars and my iPhone is running faster than it ever has and no shut downs since. It appears that the calendar was constantly trying up update all those calendars and taking up all the memory.

Count me in with this problem as well. I have a 3G and upgraded to 3.1 last night and its shut down on me at least 6 times since then. It happened once at work where there is no Wi-Fi signal so I dont think thats causing the problem. I also dont have MobileMe either. Any other thoughts?

I have had the same problem. Has anyone found a solution yet? Downloaded last night and problems already. It is kinda annoying.

I am having the same issue since updating to 3.1

same problem, 5 shutdowns today, never had 1 in the last year before this(except when I leave it on during xray at airport - twiced that locked it up hard)

Same here! What is happening Apple? Updated this morning. 3 hard crashes in 8 hours. PLEASE GIVE US A FIX. I needs my iPhone!

It just happened to me again!!! I was sending some texts and checking fantasy football scores, when I was done I locked the phone and then tried to wake it again a few minutes later with no success. I had to do a hard reset in order to get it back. I've owned the phone over a year and this has never happened before. Since I upgraded to 3.1 its happened at least 7-8 times in the past day.