3GS no signal, please help

Discussion in 'Jailbreaks and iOS Hacks' started by fongyuen, Jun 27, 2010.

  1. fongyuen macrumors 6502

    Joined:
    Jun 9, 2007
    #1
    alright, it's been a long night. hope i didn't screw up my phone. i downgraded from 3.1.3 to 3.1.2 and experienced the no signal issue. but i thought that upgrading to 4.0 would take care of the problem (not sure why) so i'm currently on 4.0 with baseband 05.13.04 and i still have no signal. any thoughts on what i need to do to regain phone function? thanks.
     
  2. cybereclipse macrumors newbie

    Joined:
    Jun 27, 2010
    #2
    are you jailbroken? i think you have to install ultrasn0w
     
  3. fongyuen thread starter macrumors 6502

    Joined:
    Jun 9, 2007
  4. fongyuen thread starter macrumors 6502

    Joined:
    Jun 9, 2007
    #4
    no luck. Says it couldn't activate cellular network. :/
     
  5. cybereclipse macrumors newbie

    Joined:
    Jun 27, 2010
    #5
    you installed ultrasn0w then rebooted right?
    nothing? no bars? what network are you on?
     
  6. fongyuen thread starter macrumors 6502

    Joined:
    Jun 9, 2007
    #6
    Phew! ultrasn0w didn't take the first time. Some kind of error, said it couldn't activate cellular network. I just tries it again after updating mobile substrate in cydia and this time ultrasn0w installed, rebooted and AT&T signal is back at full strength. Thanks!!
     
  7. fongyuen thread starter macrumors 6502

    Joined:
    Jun 9, 2007

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