Huawei Y520-U22 IMEI Repair supported?

I tried to repair imei of huawei y520-u22 with fc huawei but software always show this error :

when press detect buttom:


2016/02/24 11:03:48 PM
FlyCaptain Huawei Module v2.0.0.0051 Furious Gold Pack 7
Dongle S/N: 5F2A8B06

Before detection connect cable to usb and enable Manufacture mode !

Qualcomm and HiSilicon: *#*#2846579#*#*
MTK: *#*#14789632#*#*
Windows: ##2846579#

1.Background setting
2.USB ports setting
Select Manufacture mode

2016-02-24 23:03:51.846 Autodetect started!
2016-02-24 23:03:51.877 Compatible COM ports not found!

2016-02-24 23:03:51.888 ERROR!

Phone not found !

2016-02-24 23:05:32.614 Autodetect started!

2016-02-24 23:05:32.656 ERROR!

Phone not found !

when manually select com port and press "detect" buttom:


3.Background setting
2.USB ports setting
Select Debug mode

Select MediaTek USB VCOM (Android) COM port

2016-02-24 23:05:46.565 Start read phone info!
2016-02-24 23:05:46.573 Open port COM20 (Android Gadget VCOM Driver (COM20))...
2016-02-24 23:05:46.721 Phone authorize start
2016-02-24 23:05:46.787 Phone authorize fail!

2016-02-24 23:05:46.798 ERROR!

AT command error

I installed this cdc driver y330_mtkandroid_sp_sdc_drivers
then restart the pc


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