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Thread: 'No Service' after Unlocking a 3GS on 4.1 With Ultrasn0w

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The phone was bought from USA (AT&T locked) and I jailbroke it with Limera1n and unlocked with Ultrasn0w. Everything went very smoothly up till the no'service. I've tryed toggling Airplane
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  1. #1
    Green Apple
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    Default 'No Service' after Unlocking a 3GS on 4.1 With Ultrasn0w
    The phone was bought from USA (AT&T locked) and I jailbroke it with Limera1n and unlocked with Ultrasn0w. Everything went very smoothly up till the no'service. I've tryed toggling Airplane mode, rebooting, different Sim cards and reinstalling Ultrasn0w. I had the AT&T sim card in in up untill after I installed Ultrasn0w but I can't really activate it because I'm in UK?

    Any help is much appreciated.

  2. #2
    Superbad Modder-ator Simon's Avatar
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    What is your baseband/modem firmware?

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    Green Apple
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    Quote Originally Posted by Simon View Post
    What is your baseband/modem firmware?
    Sorry, Forgot to mention its the Ipad Baseband 6.15.00

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    Superbad Modder-ator Simon's Avatar
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    Have you tried turning 3G off?

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    Green Apple
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    Quote Originally Posted by Simon View Post
    Have you tried turning 3G off?
    yes

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    Superbad Modder-ator Simon's Avatar
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    How did you activate the phone?

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    Green Apple
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    Quote Originally Posted by Simon View Post
    How did you activate the phone?
    I'm not 100% sure what 'activating' en tales but I managed to get to the homescreen from the emergency call screen by inserting the AT&T sim card and then Itunes was satisfied and then asked me if I'd like to set up iPhone as a new phone.

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    Superbad Modder-ator Simon's Avatar
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    Ok, then you activated properly (got past emergency call screen). Not sure why you cant get signal, maybe try a restore and set it up as new.

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    Green Apple
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    Quote Originally Posted by Simon View Post
    Ok, then you activated properly (got past emergency call screen). Not sure why you cant get signal, maybe try a restore and set it up as new.
    Tried that...Is it something to do with the limera1n jailbreak? Should I have used Redsn0w? or is it a waiting game? tomorrow I'm going to try again with redsn0w.

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    Superbad Modder-ator Simon's Avatar
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    Shouldnt really make a difference.

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    Green Apple
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    Quote Originally Posted by Simon View Post
    Shouldnt really make a difference.
    Could it be a hardware issue? The rear assembly and screen was replaced but the battery and motherboard is the same original

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    Superbad Modder-ator Simon's Avatar
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    It's possible the radio could be busted.

  13. #13
    What's Jailbreak? HottSushiz's Avatar
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    Something similar happened to me. Where everything worked fine then after a while i would get No Service or it would just constantly search. After that it would just reboot and reboot.

    I fixed it by taking my sim card out and restoring to a custom firmware i created using Sn0wBreeze or whatever it's called to create custom firmwares on Windows. After i installed Ultrasn0w it worked fine it hasn't dropped the service yet. It seemed like what screwed up the unlocking process was having my sim card in it.

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