Apple (NASDAQ:AAPL) will investigate problems that iPhone 3G users have been experiencing since upgrading to iOS 4, a company spokeswoman told the Wall Street Journal. News of the probe comes after Apple said it would issue free cases to iPhone 4 users in a effort to address concerns about the gadget's antenna.
Since the iOS 4 update became widely available in late June, iPhone 3G customers who upgraded their software have been complaining about problems they have had with their user experience, according to user forums. Apparently, the most commonly cited problem is that users have found their iPhone 3G to run slower after the software upgrade. Users have also complained that the iOS update drains the device's battery quickly and makes the phone excessively hot.
The iPhone 3G, released in 2008, has a slower processor than the newer iPhone 3GS and iPhone 4.
The iPhone 3G is supposed to be compatible with most of the features of the new operating system, but does not support the multitasking functions in iOS 4 that are available to iPhone 3GS and iPhone 4 users.
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