iPhone 3G 4.2.1 dg to 3.1.3 BB 6.15 can i... ?

Discussion in 'Jailbreaks and iOS Hacks' started by hansgmuny, Apr 4, 2013.

  1. hansgmuny macrumors newbie

    Joined:
    Mar 23, 2013
    Location:
    los angeles
    #1
    Well I know that I can downgrade iOS and BB with no problem. But my concern is whether or not my Notes, Calendar, Contacts and Messages can be backed up and then restored once I am on 3.1.3?
     
  2. TriJetHero macrumors 601

    TriJetHero

    Joined:
    Oct 13, 2010
    Location:
    World
    #2
    Why would you downgrade to 3.1.3?

    No you cannot use a higher backup for a lower firmware.
     
  3. dhlizard macrumors G4

    dhlizard

    Joined:
    Mar 16, 2009
    Location:
    The Jailbreak Community
    #3
    All those items (except your messages/SMS) can be manually restored using the tabs in iTunes...

    I have never tried to use the individual tabs for restore to a lower firmware.

    As TriJetHero states, you cannot do a full restore to older firmware.
     

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