1. refryguy's Avatar
    Okay, I've read through a lot of threads and a lot of people are having the same problem but I haven't heard anyone with my specific problem so I hope this doesn't look too much like a re-post but it sort of is.

    I just got a 3GS from my boss. I have a T-Mobile SIM card and he took the at&t card that was in it. I have done the jail break but I cannot get it to sync with iTunes because it says the SIM I am trying to activate is no good due to carrier???

    I tried restoring back to FW 3.0 as someone suggested in another thread, but Apple wont sign it anymore.

    Any suggestions.

    Basically I cannot get past the Sync Screen on the iPhone with the picture of the USB. But it looks like I can make emergency calls.

    How do I do a "tethered" boot?

    bump

    Apparently I have new boot rom too

    bump
    Last edited by refryguy; 2010-06-29 at 05:10 PM. Reason: Automerged Doublepost
    2010-06-29 05:10 PM
  2. soulthoughts's Avatar
    If you have a new(er) bootrom you can't unlock yet. Download a program called f0recast. Plug you phone in and run the program. Post what it says here.
    2010-06-29 05:42 PM
  3. refryguy's Avatar
    I get an error message saying the mobile device must be running...but it is on and plugged in.

    Okay I finally got FOrecast to work.

    Serial #8894388L3NR
    Baseband: 05.13.04
    Bootloader: 6.4
    Model: MC137

    Jailbreakable?: (Blank)
    Unlockable: NO
    Tethered?: Maybe - Depends if Refurbished (Whic its not)

    So I take it I'm screwed?
    Last edited by refryguy; 2010-06-29 at 06:59 PM. Reason: Automerged Doublepost
    2010-06-29 06:59 PM
  4. soulthoughts's Avatar
    Yup, you're screwed until a new unlock comes out. Not sure when that will be.
    2010-06-29 08:21 PM
  5. refryguy's Avatar
    What if I could get my hands on an old blank AT&T 3G sim card? Could I do it without having an AT&T service plan?

    Is there any way to do it with the hardware instead of software?
    Last edited by refryguy; 2010-06-29 at 10:18 PM. Reason: Automerged Doublepost
    2010-06-29 10:18 PM
  6. babyblue_pimp's Avatar
    yup, just throw a ATT sim card in there, and plug it into itunes.

    Depending on your version, you can use spirit (if your on 3.1.3)

    Then unlock with ultrasn0w
    The only thing I ask in return for helping, is that you click the thanks button, Thanks!
    2010-06-29 10:20 PM
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