Iphone 3G slow after update to IOS4

Just updated my sad, tired, disillusioned 3G to 4.1.

IT IS IMPROVED!

3G is eager to message friends again, willing to look at the calendar, even add an appointment. We went on Safari and came back without wounds.

what a relief.

Bueno, bueno..
4.1 works much better on my 3G, I must say.
No more crashes, mail and sms back to normal now.
Apple should be more careful in the future before releasing ambitious upgrades. I would not say they fixed the problem particularly "quickly".
But they did it.
Good luck everyone

Another one...

There is a fix,a new software release is now on itunes but it is reccomended to do a restore of the phone rather than just update as its like putting windows vista onto a computer that has windows 2000 on, you cant just upgrade you need to do a fresh install.

well, we updated to 4.1 and it's OK ... we've left my wife's on 3.1.3, but may well take it to 4.1 sometime - 50/50 ... and I've no wish to take mine back to 3.1.3 - so, do it, update to 4.1, is my experience ...

to do it, we updated iTunes to latest version, then did a regular update to the iPhone (3G 8GB) from there ...

if its any help scorpibell, I downgraded to 3.1.3 about a month after iOS4 came out & everything still runs, all the apps that get updated for iphone 4 still work fine.
I dont intend to upgrade my firmware ever again. the only thing id say is back up everything in itunes 1st & including your contacts as its like getting a new phone.

its a bit of a hassle & will take a few hours to set it back up again the way you like it, but the improvment in performance is worth it.

v1ct0r,

All of us really hope so. I've seen great improvements when going from 4.0.x to 4.1, even if the speed of 3.1.3 is another thing.

I'm experimenting with 3.1.3 these days, as I wrote, and yes, is faster, but not everywhere; Safari is an example, I have the impression that 4.1 version is faster, at least according to my experience.

What I've noticed, also, is that with 3.1.3 I have more lost calls than with 4.1, but here the variables are too much to have a final conclusion.

For me (and this could be not true for everybody) folders and Mail make the difference; many apps also are not more downloadable with 3.1.3.

So I'll give a try also to 4.2, hoping that Apple made it right, this time.

I installed the GM version of 4.2 last week on my iPhone 3G and it was horribly slow. I turned off spotlight and did the resets and it didn't help any.

Reverted back to 3.13 and it's back to a fast iPhone 3G again.

I'm back to 4.1 to see where are the differences. In the meanwhile I've just discovered a big problem with the Phone app, on 4.1. If you have a MobileMe account like I have and launch the Phone app, I'm barely able to hear the person I'm calling, hearing pieces of words, at least at the beginning.

I discovered that this is related to the Contacts of my MobileMe account. What I think is that when you launch the Phone app, contacts are synchronized with MobileMe, and this takes a lot of cpu/network resources.

In fact, disabling the Contacts in my MobileMe account on the iPhone, everything is back to normal.

I hope that Apple has fixed this on 4.2. But if I have to:

(1) Disable spotlight
(2) Disable Push notifications
(3) Disable MobileMe
(4) Disable other features

I've bought the iPhone for what? I don't want to go back to 3.1.3, I want a 3.1.4 with all the security fixes AND folders AND the new email app! Or a 4.2 really working on a 3G. GRIN.

Message was edited by: Bugfixer

I went from 4.1 to 4.2. I found that 4.2 was better than 4.1 but I was still seeing delays of 1-2 seconds sometimes between my finger touching the screen and the response on-screen and, on occasion, delays of 3-4 seconds too; the only applications I use are the phone, contacts, reading simple emails, texts, Calendar, occasional Notes and Clocks. I have no 'added' applications and never use the other pre-installed apps like iPod, iTunes, Photos or Maps.

On my main computer I'm still on iTunes 9 and decided to revert to 3.1.3. I found 3.1.3 reliably responsive and it eliminated the continuing, tho reduced, delays I was seeing with 4.2. I tried 4.2 and 3.1.3 within an hour of each other and I definitely found 3.1.3 quicker and more reliable on the simple stuff I do. So for the foreseeable future, I shall be sticking with 3.1.3

Can anyone tell me - if I were to upgrade iTunes to 10, would this prevent me from re-installing 3.1.3 in the future if I should need to? Is there anything about running iTunes 10 which would force me to "upgrade" to IOS 4 again? and is there anything I'd NOT be able to do with iTunes 10 which I can with iTunes 9?

Thanks for your help.

I have periods of smoothness where the phone is working fine. Then all of a sudden it will get sticky. I sometimes will do a reset or use FreeMemory which helps. I still think memory is getting fragmented or not released which makes the phone doe a sticky hiccup.

Well my phone just took 2 hours to sync with iTunes and the result was 2 podcasts added to my phone. I manually manage music so my sync processes were usually about 5-7 minutes prior to iOS 4/4.1/4.2

I looked at the Samsung Captivate this weekend and will be picking one up this week for a demo and may be able to switch over to it for the upgrade eligible price of the phone. This is after one phone call to AT&T and a store visit to Best Buy.

I've called Apple and visited the Apple store about 10 times only to leave with "You should go home and try this" only to not have it work. I understand about apps and music as such and I can tolerate some lag there but 90% of my post-update performance issues affect the phone. I can't answer calls due to lockups. I can't switch out of a call to look something out and then return to the call. The screen freezes and sometimes the call drops. I call back and get call failed for every outgoing call until I reboot the phone.

So far I have disabled the spotlight search, factory restored to 4.1 then upgraded to 4.2 and then manually restored my contacts, applications and music. None of this helps. My iPhone 3G is garbage mid contract and Apple has taken the "Oh Well you should buy an iPhone 4" stance

From an Apple Certified IT professional and consumer with 3 Mac Computers, 3 iPhones, an Ipod Touch, an iPod video and an Apple TV in his home go ahead color me as insulted.

So what do we as 3G owners have to do? 2 weeks after the iPhone 4 came out Apple agreed to send out free cases to resolve an antenna issue. Is there a snowballs chance that they would even acknowledge and address any of the 3G performance issues? Would they offer any kind of incentive for 3G users to upgrade to a 3GS of the same size and specs so that we could at least feel like the thousands (tens of thousands for me personally) of money that we have spent with Apple are actually appreciated and that future purchases will transpire.

Or is it OK with Apple for a long time Apple fanboy to carry a droid. I'm making one last visit to my local Genius Bar with the new Samsung Captivate this week to explain my situation and let Apple know that they lost me. I doubt I'll see any more concern that I did when I visited back in June, July, August, etc.

I had been updating my 3G for the last 2yrs and have finally gotten fed up with the doggedness of the 4.X updates. I don't need the expense or functionality of an iphone4 so I have gone back to 3.1.3.

It took all of 20min to make this "downgrade" but it took 3hrs of finding the right combination of instruction, OS, and RecBoot software. This was frustrating since I know that there could be a button placed on the iTunes updater that would let you do this without scrolling through endless drawl and dead links. Why doesn't apple respond to the thousands of 3g users that are complaining.

As much as I like apple products, this experience has made me look towards Android products with a jealous open source and speedy eye.

I went ahead and got the "Free Memory" app several people mentioned. The first time I used it, I showed about 22 mB free after several "taps." Then I used the phone app to make a call, and checked the memory again... less than 2mB free afterwards. From a native app. Talk about a memory leak.

I don't know how to interpret the list of tasks running, as they don't seem to change even when I tap the button to free memory.

The most I've gotten freed is about 32-35 mB, but sometimes the app seems to top out at 18 mB or so. Using a single app often takes me to less than 5 or 6 mB after I close it. If there's any accuracy to this app's data at all, no wonder everyone is having problems. The OS seems to allow apps to grab memory and not release it.

I could revert back to 3.1.3 using Itunes. Just download the ipsw file, and when you start Itunes, yo get the option to restore using any custom file, so point to 3.1.3 file which you downloaded, and click restore.It should boot back after restoring. After that you can even go back to 4.1 (last stable configuration known to work fine with iphone 3G).
In my case, after restoring to 3.1.3, I then got it back upto 4.1, and restored my phone to the point it was before this 4.2.1 upgrade was announced.

Mine was horribly slow too. Unusable really. I was able to fix it - directions here: http://discussions.apple.com/thread.jspa?threadID=2478473&tstart=0