Orange Nivo no IMEI

How exactly can repair IMEI an Orange Nivo with Sigma ?

——— 2016-01-06 07:31:36 ———
SigmaKey 2.14.03b1 ADB: Repair IMEI
* daemon not running. starting it now *
* daemon started successfully *
^ Coolpad Android Composite ADB Interface
Version: Linux version 3.4.0 (mine@mine) (gcc version 4.6.x-google 20120106 (prerelease) (GCC) ) #1 SMP PREEMPT Sun Jun 9 21:53:33 CST 2013
Phone model: Coolpad Nivo
Android 4.1.2; Firmware: JZO54K; Date: 2013年 06月 09日 星期日 21:35:42 CST
Version: 4.1.040.P3.130609.7560U
Baseband Processor: QRD MSM8625 QRD5
Unsupported

——— 2016-01-06 07:37:02 ———
SigmaKey 2.14.03b1 Qcom: Repair IMEI
Qualcomm HS-USB Android DIAG 901D (COM253), Provider: Qualcomm Incorporated, Driver ver.: 2.0.9.9, Date: 31.08.2012, USB\VID_05C6&PID_901D&REV_0233&MI_00
Firmware: 8X25-SSRSKOLYM-2050
Date: Jun 9 2013 21:34:21, Dec 05 2012 19:00:00, SSRSKOLY
IMEI:
Not found
Bluetooth address: 000000000000
Unsupported phone model

Thanks in advance for your understanding !