iPhone not getting signal after jailbreak

Discussion in 'Jailbreaks and iOS Hacks' started by PuppyLuv, Jan 14, 2008.

  1. PuppyLuv macrumors member

    Joined:
    Sep 30, 2007
    Location:
    Alabama
    #1
    My iPhone was firmware 1.1.2 and I downgraded it to 1.1.1 to jailbreak and blah blah you know the rest. Well basically now ever since the jail break downgrade I cant make/receive calls and sometimes it periodically says something like "iphone needs to be activate," once I docked it after the downgrade it said it activated. In the top, left corner it says "No Service," and I can make no calls, not even 611 and no apps that work on EDGE work. Any idea how to fix this.
     
  2. jav6454 macrumors P6

    jav6454

    Joined:
    Nov 14, 2007
    Location:
    1 Geostationary Tower Plaza
    #2
    First of all, an OTB (out od the box) 1.1.2 can't be downgraded in order to make/receive calls. You can only downgrade to jailbreak, install Oktoprep and go back to 1.1.2.

    To make/receive calls you need also to downgrade the Baseband; however, that is not possible with the new 4.6 Bootloader.
     
  3. PuppyLuv thread starter macrumors member

    Joined:
    Sep 30, 2007
    Location:
    Alabama
    #3
    Ahh thanks I did that and it works fine now :)
     
  4. rainmanbk macrumors 6502

    rainmanbk

    Joined:
    Jan 30, 2006
    Location:
    Southington, CT
    #4
    I am having a similar problem. I'll explain it as best I can.

    I had 1.1.1 jailbroken for a while. Everything was working great. Then I installed some Extended preference app from the installer.app source list. I think this was the problem. I had problems after a restart with a flashing white and black lined screen. So i put it in restore mode, and restored it to 1.1.1. did it again. installed that extended preferences thing and summerboard, restarted, got the same white black lines. so i said to myself, that must be the problem.. restored again, and only installed summerboard and bsd subsystem. happened again. so i figured i'd update to 1.1.2. restored 1.1.1, followed instructions to 1.1.2 from modmyiphone.com, and it was working fine. until i restarted, then it did this strange boot loop where it would stay at the apple, and vibrate twice every 8 seconds. so now i downgraded to 1.1.1 but i think i deviated from the instructions a littlebit and now i can't make calls. i can restore and wahtever as much as i want but it just tells me it's waiting for activation... i'm not sure what else i can do short of going to an apple store or and at&t store.
     
  5. scottrussell macrumors newbie

    Joined:
    Apr 12, 2008
    #5
    No Service after jailbreak

    Any luck on fixing this RainManBK? I've experienced the exact same situation you describe. After jailbreaking the phone, I got the the vibrate/freeze issue. But after restoring, my iPhone (jailbroken) is working great but says "No Service" and I can't make phone calls.
     
  6. scottrussell macrumors newbie

    Joined:
    Apr 12, 2008
    #6
    PWNAGE reversed due to NO SERVICE

    Well, I tried to be patient. But ten hours later, I gave up on thinking the phone would suddenly make calls again. Bummer.

    I found a discussion on HowardForums about this, and it was suggested that I check the (by default, unchecked) "enable baseband update" option. I then unchecked the bootneutering stuff since I don't need that -- or really even know what it means. I also unchecked "unlock baseband" since I have an AT&T simcard/account.

    So, the PWNAGE tool then built a custom IPSW with the baseband updated. Result: this didn't work either!

    So I restored from the Apple IPSW, and I'm back in business again with AT&T. But of course, no third party apps. Again, bummer.
     

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