3G Back to Old Operating System

Discussion in 'iPhone' started by Cnasty, Jun 23, 2010.

  1. Cnasty macrumors 68030


    Jul 2, 2008
    Ok, I tried searching but couldnt find the answer.

    I downloaded the 4.0 on my 3G but it is super slow and want to go back to the prior operating system.

    How do I do this?

    Thanks in advance for any assistance.
  2. radong macrumors newbie

    Jun 23, 2010
    I dont know how, but I agree. 4.0 sucks on the 3G
  3. jellorocks macrumors member

    Jun 18, 2010
    I want to do this as well. 4.0 is awful on 3G. If anyone knows how to do this, please help!!
  4. Geckotek macrumors G3


    Jul 22, 2008
    Working well on my 3G. Did you restore from backup or create a new phone?

    You'll have to roll back the base band. Not sure if that's possible yet.
  5. blurb23 macrumors 6502a

    Feb 25, 2007
    Look up 'Download iPhone 3g 3.1.3 IPSW' or something similar on Google.

    Restore your phone by Alt/Option + Click on the restore button, and select that firmware to restore it to.

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