iPhone Iphone 4 what happens if i downgrade?

Discussion in 'Jailbreaks and iOS Hacks' started by prefor, Oct 17, 2012.

  1. prefor macrumors newbie

    Oct 17, 2012
    Hi guys, i am all new to this since i bought my first iphone 4 a couple of days ago. :)

    The problem is that my iphone 4 is locked and i want to unlock it...
    However my problem is that you cant unlock your iphone using IOS 6

    So my question is: If i downgrade my baseband from 04.12.02 to 01.59.00 will my baseband become 01.59.00 all the time? or can i get my previously baseband by just simply restore the phone via itunes so i get IOS 6 again?

    and i will also downgrade my IOS 6 to 5.1.1

    One last easy question :p Does ultrasn0w still works to unlock if you have IOS 5 baseband 01.59.00???
  2. TriJetHero macrumors 601


    Oct 13, 2010
    The baseband cannot be downgraded, only firmware can be downgraded under certain conditions.

    So you are stuck with the 4.12.2 BB.

    Buy a IMEI unlock online, there are several threads on this forum, its your only solution to unlock.

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