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Thread: upgrade firmware worth it?

  1. #1
    Default upgrade firmware worth it?
    Hi
    I have a 3gs with 3.1 firmware (7C144) Carrier 5, modem 05.11.07. My noob question is can I easily upgrade to 3.1.2? If so how? I have JB'd unlocked with blackra1n. I have a windows comp. How do I back up any apps or data?
    The reason I want to update is that the phone keeps losing the T mobile signal and I am hoping this will help.
    Thanks in advance for any help

  2. #2
    Retired Moderator Poseidon79's Avatar
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    Well... there's honestly no diff between 3.1 and 3.1.2 except for what Apple calls "bug fixes" which is a load of crap. You can build a custom 3.1.2 firmware with sn0wbreeze... put your phone in recovery mode and restore to that. If your phone is currently jailbroken then it shouldn't need an Apple signature.

  3. The Following User Says Thank You to Poseidon79 For This Useful Post:

    FatJuan (2010-03-14)

  4. #3
    Thanks for the info, greatly appreciated!

  5. #4
    Default New phone
    I have purchased an Iphone described as unlocked. It is on firmware 3.1.3.
    It works with tmobile orange and Vodafone sims. Can I safely believe it is unlocked and connect to itunes etc?

    Thanks for any help. I already have a 3.1.2 iphone that I have JB'd and blackra1n unlocked. There is no sign of such software on this phone (the 3.1.3.)

    Thanks for any help.

  6. #5
    ^ if it was upgraded with a custom firmware then yes.

  7. The Following User Says Thank You to moon#pie For This Useful Post:

    FatJuan (2010-03-27)

  8. #6
    Default custom firmware
    How could I tell if it is custom firmware?
    the about says
    version 3.1.3 (7E18)
    carrier 5.1
    model MC133B
    modem firmware 05.12.01
    ICCID is blank?? no sim in at present
    checked serial on apple site says its in warranty

  9. #7
    Retired Moderator j3st3r's Avatar
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    Quote Originally Posted by FatJuan View Post
    I have purchased an Iphone described as unlocked. It is on firmware 3.1.3.
    It works with tmobile orange and Vodafone sims. Can I safely believe it is unlocked and connect to itunes etc?

    Thanks for any help. I already have a 3.1.2 iphone that I have JB'd and blackra1n unlocked. There is no sign of such software on this phone (the 3.1.3.)

    Thanks for any help.
    if it works with sim cards other than AT&T then it is unlocked...not sure what you mean by "no sign of such software on this phone"

  10. #8
    Hi
    Thanks for the reply.
    I meant no sign of any jailbreak software on the phone.
    Thanks

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