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Thread: Upgrade BL 3.9FB to 4.6 on 2.2.1

  1. #1
    Question Upgrade BL 3.9FB to 4.6 on 2.2.1
    Hi everyone, I've searched the forums over and over for this with no luck. I'm on firmware 2.2.1 with BL 3.9FB. I wanted to update to BL 4.6 before OS 3.0 comes out and to hopefully improve signal reception. Bootneuter doesn't work on 2.2.1, it keeps locking up as others have posted also. Does anyone have any ideas on how to upgrade to BL 4.6? I'm running Windows XP. Thanks.

  2. #2
    you cant update ur BL.
    Last edited by mYiPhOnE7; 2009-06-18 at 04:37 AM. Reason: wrong

  3. #3
    haha bootloader wont help that what so ever and as the guy above me said you cant really change bootloaders

  4. #4
    Why can't I update my BL to 4.6? It used to be 4.6 and changed it to 3.9FB long ago when I used iLiberty, and has been on 3.9FB until now with 2.2.1.

  5. #5
    "BL" a hardware device, there 4 u cant change ur BL (if u want to change, replace ur hardware), But u can chane only iPhone version and Modem Firmware only...

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