sony st21i imei repaire failed

SigmaKey v.2.17.00
953759621 Sigma dongle 2.17, Initializing…OK
Pack 1: Activated
Pack 2: Activated
——— 2016-04-21 13:32:52 ———
SigmaKey 2.17.00 ADB: Repair IMEI
* daemon not running. starting it now *
* daemon started successfully *
^ Sony so0101 ADB Interface Driver
Version: Linux version 3.0.8-perf (user@su-buildpc-02) (gcc version 4.4.3 (GCC) ) #1 PREEMPT Tue Jan 29 01:31:31 CST 2013
Phone model: Sony ST21i2
Android 4.0.4; Firmware: 11.0.A.6.8; Date: Tue Jan 29 01:35:04 CST 2013
Version: 11.0.A.6.8
Baseband Processor: QCT MSM7x27a SURF
Not found