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Thread: [Tutorial] Check 3GS old boot rom and Update to iOS 5 Untethered *OLD BOOT ROM ONLY*

  1. #51
    Junior Member
    Join Date
    Jul 2013
    Posts
    4
    when i'm FW 5.1.11 my base band is 05.16.02, i think BB 05.16.02 is make cell signal not working ( always searching ) but wifi, gps is working fine
    when i'm searching on google, someone recomended change ipad baseband but gps is not working
    now i'm in fw 6.1.3 my BB is 05.16.08, all are working fine now although now my phone run a little slow
    my question is :
    - can i downgrade again to 5.1.11 and
    - what BB work on 5.1.11 ?
    - can we change BB only ?
    thx b4

  2. #52
    Moderator Smokin House's Avatar
    Join Date
    Aug 2011
    Location
    Smokinhouseville
    Posts
    428
    Device
    iPhone 4 & 3GS iOS 6.1.3 Old Boot fully untethered
    Very strange...... The official baseband for 5.1.1 is 05.16.05 and not unlockable with ultrasn0w you would have to upgrade to the ipad 06.15.00 to use ultrasn0w (well apart from models made after 2011 week 35 cannot use this baseband)

    05.16.02 is the baseband for 4.3.1 to 4.3.5 and is unlockable with ultrasn0w

    Now you say your on 6.1.3 with the latest baseband and your sim is working? maybe your phone is already unlocked to any network?

    did you just do a straight apple/itunes update to 6.1.3?
    zen_livin likes this.

  3. #53
    Junior Member
    Join Date
    Jul 2013
    Posts
    4
    yes my iphone is Factory Unlock from begining
    i just do restore from itunes and got 6.1.3 with 05.16.08 BB

    * i just JB using snowbreeze and working now
    Last edited by zen_livin; 07-05-2013 at 02:47 AM.
    Smokin House likes this.

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