Apps (even Apple apps) take forever to load, and routinely hang while performing simple tasks (typing, focusing on a form field, switching tabs, etc). I'd have to recommend staying with 3.x if you haven't already upgraded.
Tell HN: My iPhone 3G is unusably slow since upgrading to iOS 4.0
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Re: Tell HN: My iPhone 3G is unusably slow since upgrading to iOS 4.0
#2Strange. I have a 3G and 4.0 feels slightly faster compared to 3.1.3. Did you jailbreak it and enable multitasking + extra animations?
Re: Tell HN: My iPhone 3G is unusably slow since upgrading to iOS 4.0
#3I haven't really noticed much of a slowdown with the apps and tasks on my 3G since upgrading, but it does seem to eat up the battery a little quicker.
Re: Tell HN: My iPhone 3G is unusably slow since upgrading to iOS 4.0
#4Try a full restoration, it helps.
Re: Tell HN: My iPhone 3G is unusably slow since upgrading to iOS 4.0
#5My 3Gs internet stopped working after the upgrade and I have no idea how to reenable it.
Re: Tell HN: My iPhone 3G is unusably slow since upgrading to iOS 4.0
#6Try a full restoration, it helps.
Thanks, I'll try that.
Re: Tell HN: My iPhone 3G is unusably slow since upgrading to iOS 4.0
#7My iPhone is currently running 3.1.2 - is it still possible to upgrade to 3.1.3 somehow?
Re: Tell HN: My iPhone 3G is unusably slow since upgrading to iOS 4.0
#8Would anyone be willing to share their experiences with tethering on iOS4?
Re: Tell HN: My iPhone 3G is unusably slow since upgrading to iOS 4.0
#9My 3Gs internet stopped working after the upgrade and I have no idea how to reenable it.
This one is pretty easy to fix.
Go to Settings>General>Reset and select Reset Network Settings.
Do that and a quick reboot and you should be all set.
Re: Tell HN: My iPhone 3G is unusably slow since upgrading to iOS 4.0
#10Same, with both the upgrade and a full restore, and my phone is stock (no jailbreak.) A good friend had great success with his after iOS4, so it's not affecting everyone. I followed a guide online and manually rolled back to 3.1.3 and haven't looked back, and soon I'll pick up the 4G. It's not like most of the compelling features were compatible with the 3G anyway.