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  1.    #1  
    Hi,

    I have a Cingular Treo 650 phone and want to use my T-Mobile SIM, everytime when I put the T-Mobile SIM in and it's indicated something like "your SIM card does not allow a connection to this network, you can only make an emergency call".

    I have read from different forum and they suggested to enter *#*#(last 8 digits of IMEI)# and try attempt to do it ten times then it will remove the SIM lock then manually reboot the device (reset button in the back).

    I have tried it and it tell me that my SIM lock has removed which I'm pretty happy to see but as long as I reset the device then it went back from beginning "Your SIM card does not allow a connection to this network, you can only make an emergency call.."

    Please advise...

    Thanks
    Randy
  2. #2  
    The phone must not be unlocked.

    You could try calling att, or there are private parties that can unlock it for a fee.

    Here's a thread that might help:
    http://discussion.treocentral.com/gs...reo-650-a.html
    Just call me Berd.
  3.    #3  
    Will do...thanks

    Randy

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