1. #1
    CherrySoleil
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    Hi, I go through AT&T and I always buy unlocked GSM phones from asia. I recently purchased an LG SH490 (AKA LG Makeup). It required a hypersim to work it so I cut my simcard and paired it with the hypersim, turned it on and it worked. Well, it worked for an hour then it started saying "location update failed". So after working with it for a while, I decided to buy a new hypersim, when I got the new hypersim and paired it with the simcard this time, it says "INVALID USIM". I am desperate to get this phone working, does anyone have any clue as to what I can do to get this phone to work, and why it worked for an hour and mysteriously "lost location update"?


    See More: INVALID USIM LG Makeup with Hypersim




  2. #2
    tavenger5
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    Re: Does anyone have ANY idea at all about this problem?

    do you know what network the phone was locked to? Do you have access to the filesystem of the phone?
    John

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  3. #3
    CherrySoleil
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    Re: INVALID USIM LG Makeup with Hypersim

    It was from Cyon in South Korea. No, I do not have access to the filesystem.



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