Y625-u21, 4.4.2

I used to unlocked this devices but this sigma ver., got this :

Sigma dongle 2.15, Initializing…OK
Pack 1: Activated
Pack 2: Activated
——— 2016-02-16 10:52:21 ———
SigmaKey 2.15.02 ADB: Direct unlock
* daemon not running. starting it now *
* daemon started successfully *
^ ROMaster Composite ADB Interface
Version: Linux version 3.4.0-perf-g5e7a337 (release221@yep) (gcc version 4.7 (GCC) ) #1 SMP PREEMPT Wed Mar 4 13:48:58 CST 2015
Phone model: HUAWEI HUAWEI Y625-U21
Android 4.4.2; Firmware: HUAWEIY625-U21; Date: Wed Mar 4 13:38:31 CST 2015
Version: Y625-U21V100R001C602B106
Baseband Processor: Qualcomm MSM8212
Date: Mar 4 2015 13:29:46, Jan 29 2015 02:00:00, BAAAANWZ
IMEI: 866337022028061
Unsupported phone model

???