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  1.    #1  
    Hi. Please be nice to me, as I'm a newbie here. I just received a Cingular branded Treo 650 which I had purchased from Since I am going to use this with my T-mobile sim card, I need to unlock this first, but I'm afraid I read somewhere that if I upgrade firmware, it needs to be unlocked again.

    So, which procedure do I have to perform first? As to unlocking, I will use, since I don't know anyone around me who's using Cingular. Thanks in advance.
    Last edited by ansatzjp; 09/08/2005 at 07:20 PM.
  2. #2  
    Applying the ROM update should not affect the locked/unlocked status of your phone at all. But, if you're still unsure, why not just go ahead and apply the update? ...and unlock the phone afterwards?
    V > Vx > m505 > m515 > T/T > T3 > TC > 650 > 680
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  3.    #3  
    thanks! I will try that.

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