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  1. #1

    Member Since
    Apr 21, 2011
    iPhone 3GS unlocked not working with 2G network
    Hi all,

    I just bought an iPhone 3GS off ebay.It was advertised as unlocked.I received the phone and under carrier it shows 3 9.0.I am in Australia.I inserted a 3 sim card and it shows signals and roaming message.But when i insert my 2/2.5G lycamobile prepaid sim card,it 1st shows 1 signal bar and then kept on searching for sometime,then either shows "no service"or "invalid SIM".I tried resetting it and restarted multiple time but of no use.I don't think if it is jailbroken as i dont see cydia application on it.

    Kindly help

  2. #2

    Member Since
    Apr 30, 2011
    hi cjawadz,

    did you solve the problem? i do have the same issue with my iphone 3gs.
    i got a german one from a friend as a gift. it's locked to a german provider, so i jailbreaked it to use it in my country. but no reception with 2g

    every hint weould be appreciated.


  3. #3

    Member Since
    Apr 30, 2011
    it's done! had to upgrade the baseband to the ipad baseband and than an unlock with ultrasn0w worked.

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