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HELP....Locked Siemens SL56

I have a siemens SL56 cellphone that I have tried to get unlocked through my AT&T carrier but with no luck. They told me that it probably is locked to the OLD blue AT&T sim/plan. How can I get my phone to work with my new AT&T SIM card. Can it be done?

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Ok this is simple they dont put it in the books but i found out going to the techs.
when it gets to the pin type in 0000
1234 or 12345 or last 4 digits of your phone number or account
i dont know why they dont put these in

this is the universal code for everything

Posted on May 26, 2008

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