how to unlock sony sol21

* daemon started successfully *

^ ROMaster Composite ADB Interface
Version: Linux version 3.4.0-17382J-g2f4f874-00897-g930545c (BuildUser@BuildHost) (gcc version 4.6.x-google 20120106 (prerelease) (GCC) ) #1 SMP PREEMPT Tue Jun 11 15:08:53 2013
Phone model: Sony SOL21
Firmware: 9.1.D.0.401
Date: Tue Jun 11 15:08:53 2013
Version: 9.1.D.0.401
Baseband Firmware: 8960A-AAAAANAZQ-3001075-13
Baseband Processor: BLUE CDB
Version: 9.1.D.0.401
Reading security block... Not found

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