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Thread: iphone 3G 4.2.1 bb 6.15 ultrasn0w NO SERVICE

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I have my iphone 3G 4.2.1 w/ 06.15.00 BB installed the latest ultrasn0w from cydia and it will not unlock it just says no service. (this phone was given to
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  1. #1
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    Default iphone 3G 4.2.1 bb 6.15 ultrasn0w NO SERVICE
    I have my iphone 3G 4.2.1 w/ 06.15.00 BB installed the latest ultrasn0w from cydia and it will not unlock it just says no service.

    (this phone was given to me by a friend)

    I believe it was intially hacktivated and SAMS PREF was installed (ive removed that)

    i obtained an original carrier sim and used redsn0w to DEACTIVATE it and let itunes RE-ACTIVATE it w/ original carrier sim and then i reinstalled ultrasn0w and im still getting the NO SERVICE error.

    any advice would be greatly appreciated

    Any help would be appreciated

  2. #2
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    SAM is used to activate and allow access to the Springboard. It does not fix a 'no service' issue.

    Try re-installing Ultrasn0w.

    If that doesn't help and you have recently restored to 4.2.1, try re-installing the iPad BB 6.15.
    Download and run redsn0w 0.9.6rc16, check one (1) option, "Install iPad baseband".
    Reboot and test.

    The process is fairly quick and does not effect the current iOS or jailbreak.
    If it doesn't help, I would start completely over with a fresh 4.2.1 restore.

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    Superbad Modder-ator Simon's Avatar
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    Also make sure if you are using it on tmobile US to turn off 3G in settings

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    When I run redsn0w 0.9.6rc19

    Options I have are as follows:

    Install Cydia
    Install custom bundle
    verbose boot
    custom boot logo
    custom recovery logo
    enable multitasking
    enable homescreen wallpaper
    enable battery percentage
    deactivate
    just boot tethered right now
    just enter pwnd DFU mode right now



    I dont see any install ipad baseband option... i know ive seen it before on older redsn0w versions or is it after this screen i can select it?

    or am i missing something here?

    also thank you both for your quick replies

    (sidenote ive installed and removed ultrasn0w more then a half dozen times without any luck)

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    Superbad Modder-ator Simon's Avatar
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    You need an older version like 0.9.6rc18

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    Im thinking about restoring this phone and starting from scratch but ive read I need to have a custom firmware made? and use tinyumbrella fix?

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    Yes you will need a custom firmware.

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    how do i create one of these for my iphone 3g 4.2.1 ? im running windows... i know there was a mac utility that would allow me to do that ages ago but that does me no good

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    Superbad Modder-ator Simon's Avatar
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    snowbreeze is what you will have to use on windows. A quick google of "iPhone 4.2.1 snowbreeze custom" should point you to the right version that you need.

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    make a firmware in snow breeze without hactivate, then use official sim to activate and ultrasnow to unlock

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    i keep getting error 1600 when trying to restore to this sn0wbreeze custom firmware

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    You need to use redsnow to enter pwned DFU before you can restore to the custom firmware.

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    use ireb to enter dfu it seems easier, atleast to me

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    Problem with ireb is that it is not as reliable as redsnow.

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    never had a single problem

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    I have seen a lot of people on here still get errors after using iReb.

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    i did use ireb its in pwned dfu and thats when i was getting 1600 error

    i shall try redsn0w any version i should use ?

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    Try redsnow

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    Ok there is a fix for the no service problem. If you look on the Internet hard enough you'll find it. It's not a software problem but a hardware problem.

    The problem is the inductors on motherboard has broken off. On a 3G it's on the back of the motherboard at the bottom beside the copper/brass antenna.

    On a 3GS it's on the front in the same stop.

    The solder is **** on the motherboards and grows brittle after awhile and the inductor falls off. It's only about 1mm big but if it's not there no signal.

    This is what you need to do.

    Open phone remove mother board and get a magnifying glass and solder the 2 points together. You dont need the inductor it does nothing really but make a connection from point a to point b the antenna.

    A simple solder connection will work. Has for me. Ive fixed **** loads of iPhone 3G and 3gs's this way with the no signal problem.

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    If it were a hardware error, as you describe, the phone should still work via WiFi. When it doesn't work on WiFi then hardware is not the issue.

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