Unlock iPhone 3GS Softbank iOS 6.1.2?

Discussion in 'iPhone Tips, Help and Troubleshooting' started by mnya, Mar 2, 2013.

  1. mnya macrumors member

    Jul 20, 2012
    Would you please help me figure out if & how unlocking my iPhone is possible?
    - 3GS
    - Softbank-locked (I still have the SIM)
    - iOS 6.1.2 (I did not save iOS 4 / 5 SHSH blobs when updating)
    - 16GB

    I want to unlock it so I can use it on a prepaid plan with a carrier in the U.S.
    Ideally I would like to have all the functions like data, call and text.
  2. luigismartphone macrumors member

    Mar 2, 2013
    Florence, Italy
    Jailbreak it with Redsn0w and flash the 06.15.00 iPad baseband (also with Redsn0w) and install Ultrasn0w from Cydia or buy an IMEI unlock from http://www.officialiphoneunlock.co.uk

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