Iphone 3G no service issue?

Discussion in 'Jailbreaks and iOS Hacks' started by Macbrainwracked, Jan 15, 2012.

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  1. Macbrainwracked, Jan 15, 2012

    Macbrainwracked macrumors newbie

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    #1
    Well I just received a used Iphone 3g from a friend. I went through the task of fixing the 1015 error and getting it functional, then installed cydia with Redsnow. But now the problem is the phone reads no service when entering the sim card. I have tried the airport mode trick, resetting the network settings etc with no luck. What am I doing wrong? I am on 4.2.1. Am I mistaken, is it even jailbroken? Can anybody help on this issues :confused:
     
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  2. Crystal-RX, Jan 15, 2012

    Crystal-RX macrumors 68030

    Crystal-RX

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    #2
    1. which network is your sim belonging to?
    2. what is the baseband on your phone now? go to setting, general, about and look at the "Modem firmware".
     
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  3. Macbrainwracked, Jan 15, 2012

    Macbrainwracked thread starter macrumors newbie

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    #3
    Thanks for the reply! I just checked and the modem Firmware says 06.15.00, and my sim belongs to T-mobile.
     
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  4. Crystal-RX, Jan 15, 2012

    Crystal-RX macrumors 68030

    Crystal-RX

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    #4
    1. Open Cydia, search for Ultrasn0w. install it.
    2. Go to setting, general, network, disable 3G.
    3. Reboot your phone and you will have service.
     
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  5. Macbrainwracked, Jan 15, 2012

    Macbrainwracked thread starter macrumors newbie

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    #5
    Wow, that did the trick! Thank you a BUNCH crystal! I wracked my brain for a good while trying to figure out why it was not working! It has service and I am a happy camper :D
     
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  6. Crystal-RX, Jan 15, 2012

    Crystal-RX macrumors 68030

    Crystal-RX

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    #6
    Enjoy your phone! :)
     
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  7. cremartin, Jan 28, 2012

    cremartin macrumors newbie

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    #7
    NO!!! Service!!! 3G, 4.2.1, 16.05.00 --> T-mobile

    I got same problem....I got used 3G at&t phone 2 weeks ago. I did jailbreak and unlock 20 times maybe....I install some thing called SAM and SAMPREFs....nothing except that itunes showed my phone number. So now I'm after another jailbreak (Redsn0w 0.9.6rc12) and unlock. 3G is disable. reboot my phone 10 times already....nothing....no service %^%$#. I probably can't even resale it now....
     
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  8. Crystal-RX, Jan 29, 2012

    Crystal-RX macrumors 68030

    Crystal-RX

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    #8
    Reflash the iPad baseband and reinstall ultrasn0w.
     
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  9. cremartin, Jan 29, 2012

    cremartin macrumors newbie

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    #9

    Just quick question/few...Can I used same Ultrasn0w to reflash that I used to jailbreak 9.6.6rc12 and I can't find how to reflash 3g only 3GS...I guess I fallow 3gs(s) guide....should I? .......
     
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  10. Crystal-RX, Jan 29, 2012

    Crystal-RX macrumors 68030

    Crystal-RX

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    #10
    You can use the same redsn0w to reflash iPad baseband as you use on 3GS. Then reinstall ultrasn0w 1.2.5 in Cydia to unlock it.
     
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  11. cremartin, Jan 29, 2012

    cremartin macrumors newbie

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    #11
     
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  12. Crystal-RX, Jan 29, 2012

    Crystal-RX macrumors 68030

    Crystal-RX

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    #12
    Did you disable 3G in network setting?
     
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  13. cremartin, Jan 29, 2012

    cremartin macrumors newbie

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    #13


    Yes I did.....:(
     
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  14. cremartin, Jan 31, 2012

    cremartin macrumors newbie

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    #14
    Any help? I'm out of ideas......
     
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