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Security Error

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  1. udaikanth

    udaikanth New Member

    I upgraded my optimus one from 2.2 to 2.3. When i started the phone "Security Error" message is displayed with emergency call mode. I tried with different sim cards but there is no network. after dialling any emergency call and
    disconnecting it we can use all the features of the phone except the call as there is no network.
    Tried downgrading the software but the same problem exists.Went to the service centre and they are saying to change the mother board which costs 8000.
    Please help me.... if you are not clear about my problem...pls ask me....but help me.....


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