Question about iPhone 3GS and tethered boot

Discussion in 'iPhone' started by Agent-P, Jan 30, 2012.

  1. Agent-P macrumors 68030

    Agent-P

    Joined:
    Dec 5, 2009
    Location:
    The Tri-State Area
    #1
    First off, I decided to post this here rather than the hacks section simply due to it would be seen by more people here. However if the mods feel it is more appropriate in the hacks section, then go ahead and move it.

    I have an iPhone 3GS running iOS 5.0.1 with baseband 6.15.00. I have it unlocked, so I needed to preserve the baseband when upgrading from 4.3.3. I used a custom IPSW which was already jailbroken and activated in order to upgrade. However it was a tethered jailbreak. The current method for jailbreaking iOS 5.0.1 allows for an untethered jailbreak. Would it be possible for me to just use redsn0w to rejailbreak my device, and just not install Cydia when redsn0w asks me to? Or would that cause issues with my device?
     
  2. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #2
    You will have to create a custom ipsw with redsnow to update to 5.0.1
    Not sure if you're asking to stay on 4.3.3 and just untether your JB or update to JB 5.0.1?
     
  3. DerekRod macrumors 6502a

    DerekRod

    Joined:
    Jan 18, 2012
    Location:
    NY
    #3
    No see the 6.15 baseband is the iPad baseband your not preserving per se you just cant update the official way you need a custom 5.0.1 ipsw made via redsn0w and 5.0.1 is untethered for all devices (3GS,4,4S,iPad and iPad 2) so it really doesnt matter update with the custom IPSW and just install cydia and you should be untethered and fine.never update with iTunes.
     
  4. Agent-P thread starter macrumors 68030

    Agent-P

    Joined:
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    #4
    So would I encounter any issues if I took this route:

    I first backup to iCloud.
    Then I use redsn0w to create a custom IPSW for 5.0.1
    I then install this custom IPSW in iTunes.
    Then once I set it up, I restore from iCloud.
    Then I can jailbreak/unlock and be happy.


    If I'm understanding correctly, then the above should work.

    One question I have is how will I activate the iPhone on iOS 5? I don't have an AT&T sim. I have it unlocked and I only have my T-Mobile sim. How could I get around this issue?
     
  5. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #5
    Yes, your steps are correct.
    You will need an AT&T sim to activate it and get into the homescreen in order to open cydia and install ultrasnow to unlock.
    You can use any old and deactivated AT&T sim or prepaid AT&T gophone sim.
    You can even buy one on ebay for $1-2 or borrow a friends for a minute.
     
  6. Agent-P thread starter macrumors 68030

    Agent-P

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    #6
    Alright, looks like I'll be looking for an AT&T sim now. Thanks for your help.
     
  7. durruti macrumors regular

    durruti

    Joined:
    Mar 26, 2004
    Location:
    Jersey
    #7
    or u could use "Pwnge Tool" and create a custom ipsw with the corresponding baseband (fyi, you can not downgrade your baseband, for unlocking purposes it's usually best to keep older baseband versions), and iOS you want to use.

    Make sure when you create the custom ipsw, you configure it to jailbreak/unlock/activate etc.

    Then finally alt/option restore the custom *.ipsw in iTunes.

    This way you can skip the step of finding an AT&T SIM to activate.
     
  8. Agent-P thread starter macrumors 68030

    Agent-P

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    #8
    So essentially the steps in this guide? That would be great if I didn't have to track down an AT&T sim (all my friends are on Verizon).

    http://www.iclarified.com/entry/index.php?enid=19017
     
  9. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #9

    Not 100% but I don't think pwnage or any tool currently hactivates 5.0.1
     
  10. DerekRod macrumors 6502a

    DerekRod

    Joined:
    Jan 18, 2012
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    NY
    #10
    Hes on the iPad baseband hes stuck there lol

    Redsn0w should hacktivate 5.0.1
     
  11. Agent-P thread starter macrumors 68030

    Agent-P

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    #11
    I haven't found the option anywhere in redsn0w.
     
  12. DerekRod macrumors 6502a

    DerekRod

    Joined:
    Jan 18, 2012
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    NY
    #12
    When you jailbreak it it should hacktivate it if you have baseband 6.15 just put your sim card in and your good to go
     
  13. Agent-P thread starter macrumors 68030

    Agent-P

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    #13
    That may be why I didn't see the option. I didn't use redsn0w to jailbreak. I guess after I make my custom IPSW and restore to stock I'll be using redsn0w to jailbreak. After I hit the jailbreak button, it'll give me the option to hacktivate it, right?
     
  14. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #14
    It wont give you an option.
    If the phone is not activated when you run redsnow it usually hactivates it and gets you in to the homescreen.
    If it doesnt then you know you will need a sim.
    I heard for the latest 5.0.1 it doesnt but Im not positive.
    You will know either way as soon as you run it. If you're still at the connect to itunes and asks you for a sim then you know what's up.
     
  15. Agent-P thread starter macrumors 68030

    Agent-P

    Joined:
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    #15
    Alright, seems simple enough. If I need to, I'll just pick up a cheap Gophone and use the sim from there. If not, then great. Thanks for your (and anyone else who answered) help.
     

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