Sony SO-02G imei repair error

--------- 2019-03-12 14:15:04 ---------
SigmaKey 2.30.00 ADB: Repair IMEI
* daemon not running. starting it now *
* daemon started successfully *
^ Android Composite ADB Interface
Version: Linux version 3.4.0-perf-g69b3c7f (BuildUser@BuildHost) (gcc version 4.7 (GCC) ) #1 SMP PREEMPT Wed Mar 4 21:27:39 2015
Phone model: Sony SO-02G
Android 4.4.4; Firmware: 23.0.B.1.59; Date: Wed Mar 4 21:27:39 2015
Version: 23.0.B.1.59
Baseband Firmware: 8974-AAAAANAZQ-00009-07
Baseband Processor: Qualcomm MSM8974PRO-AC
Reading security block..........Unexpected response from the phone

Guljee