Downgrading to iPhone 3G iOS4

Discussion in 'iPhone Tips, Help and Troubleshooting' started by JDB1983, Jun 29, 2010.

  1. JDB1983 macrumors newbie

    Oct 31, 2009
    What's the best method to downgrade/reflash/hack an iPhone 3G that has iOS4 in order to install iPHone OS 3.1.3?

    I'm finding iOS4 unusable sluggish.

    (Edit, in title I meant 3.1.3, not 4 - obviously)
  2. MacsRgr8 macrumors 604


    Sep 8, 2002
    The Netherlands
    Check out this thread on the same "Phone Tips, Help and Troubleshooting" page. ;)

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