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3G iOS4 resulting in sluggish performance and horribly slow calendar

I "upgraded" my iPhone 3G using the restore method which in itself was trouble free.

However, the whole UI is now sluggish and even worse, the Calendar app is PAINFULLY stilted. My MobileMe calendars are visible, but the screen freezes, after a pause (5-10 seconds); the calendars disappear! Then after another pause (10 seconds or so), they reappear!

Generally, the whole phone feels laggy with button presses seemingly not responding and then the OS playing catchup.

Anyone else had Calendar slow-down/pauses happen?

Greg

iPhone 3G, iOS 4, MobileMe contacts, calendars and email synced over the air

Posted on Jun 22, 2010 4:43 AM

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81 replies

Jul 8, 2010 10:59 AM in response to chuckagr

I also am experiencing the sluggishness when I touch buttons. There is a 10 second delay. I also am experiencing the screens blanking out then coming back as others have reported. I'm not having calendar issues though as some are.

I've scrolled through this list and haven't seen any answers other then upgrade to iPhone 4. Not an option for me. I'm a full-time student with a part-time job!

If anyone gets an answer to fix the problem, please let me know!!

Jul 16, 2010 10:07 AM in response to cedlong

I effing hope so... My wife's 3G is virtually unuseable!
She can't even answer calls after her phone has been on and in use for a while (probably because of all of the background resources being hogged by iPod, Mail, Safari etc.)
I wholeheartedly agree that this really shows how little development time is being spent on optimizing iOS4 for the older hardware.
A Geek at the Apple store even put his foot-in-mouth by saying, "Yeah, well iOS 4 really shines on the iPhone 4"... Thanks kid, but you shouldn't have to upgrade your hardware every 24 months just so you can stay functional.

Jul 16, 2010 10:49 AM in response to JHEY...

HI

I have updated to OS 4.01 today and my phone is now back to speed, as fast as i can drag and slide and tap my fingers on the screen, it can keep up no problems. I tried each App that I have apprehensively to see if any of them would cause the phone to go back to its horrible sluggishness, but I am happy to say that every App works very nicely without any lag.

After suffering from a very very sluggish OS 4.0, this update is fantastic and has made the phone 100% usable again.

If you are on the fence about upgrading, then I would recommend that you do it asap, the speed increase is very welcome.

Jul 16, 2010 11:38 AM in response to HG Rising

Another unhappy user.

My iPhone 3g is now basically unusably slow. I'm not sure I want to buy an iphone4 later on, knowing that when they upgrade the os they won't care about keeping the old phones running well.

I don't even care about the ios4 features, I just want to rollback my os so my phone can be fun again. Seriously considering other alternatives at this point.

I can't even figure out how to contact apple directly about this issue.

3G iOS4 resulting in sluggish performance and horribly slow calendar

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