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  1. queinnel's Avatar
    About a hour ago, I have upgraded my iPhone 3G from iOS 4.0.1 to iOS 4.0.2. The first impressions are very positive. Why? Because my sluggish iPhone 3G seems to run faster and smoother than on iOS 4.0.1 and iOS 4.0. Don’t expect the speed of a iPhone 4 or iPad. However, the speed is very comparable with iOS 3.1.x or iOS 2.2 on a iPhone 2G. What is improved? Well, first of all Safari opens faster. And when I tap on the search bar, my keyboard pops-up nearly instantly. Also when I type on my keyboard, the keyboard responses very smooth. No more keyboard freeze. When I close Safari by hitting the Home button, Safari closes instantly. Screen rotation is also much smoother, for example the Photos app runs better than iOS 4.0 and 4.0.1. In general, all apps are starting faster and provides me the feeling that my good old iPhone 3G is usable again. Note: I kept my my spotlight active for Applications and Contacts. By switching this spotlight off, it should improve the performance too . I have to confess that I had experienced speed improvement too by using Exchange in stead of IMAP on my gmail mail accounts. Since last year, Gmail accounts supports MS Exchange / Active sync push mail. However iPhone iOS 2.x and 3.x only supports a maximum of 1 MS Exchange push account. Because I am using multiple Gmail accounts, I had to use IMAP, because you can add multiple of them on iOS 2.x and 3.x. However, the new iOS 4.x now supports multiple MS Exchange accounts so I swap them to use Exchange push. And It looks like it save me some CPU cycles and should consume less battery. And the most important thing i have noticed, my good old iPhone 3G seems to act faster without the IMAP accounts. I need to tell you that I disabled “fetching” every 15 minutes because “push” will notify you near realtime! Please share your ideas about this subject and leave a comment. thanks.
    2010-08-20 12:13 AM
  2. iNT3Rv3NTiONZz's Avatar
    My 3g sucks I hav taken my IMAP account off because of lag UK just waiting for my iPhone4..
    But another "tip" for ya is to disable all the search things in spotlight (settings-homebutton-spotlight search) it works a treat!
    2010-08-20 12:24 AM
  3. queinnel's Avatar
    Hopefully, next week, apple will release the fix slow iphone 3g on ios 4
    2010-08-20 11:19 PM