many ProbleM, SL3 > SIMLOCK invalid! >< 
SECURITY_TEST failed!
http://forum.gsmhosting.com/vbb/showthread.php?t=917913
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http://forum.gsmhosting.com/vbb/showthread.php?t=917942
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http://forum.gsmhosting.com/vbb/showthread.php?t=917815
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all Many same Problem can solevd