E5577s-932 unlock problem

hello this modem supported to downgrade firmware

Getting information from the device...
Getting information from the device...OK

Model: E5577s-932
Application port: COM28
Diagnostic port: --
IMEI: 866852026709508
Firmware Version: 21.329.63.00.1367
Build Date: --
DL Ver:2.0
DL Info:
swver:21.329.63.00.1367
isover:WEBUI_17.100.20.01.1367_MRE5
webuiver:WEBUI_17.100.20.01.1367_MRE5
product name:E5577s-932
dload type:0
Authority Id:866852026709508,0
Authority Ver:2

User: 119FB06F
User credits: 14
7/11/2018 4:06:02 PM Starting to write device...
Validating file...
File to write: C:\Users\MARVZ_TG\Downloads\Huawei_E5577s_932_Firm ware_21.318.03.00.1133_SIGNVER.dgtks
File version: 21.318.03.00.1133
Looking for attached port...
Attached port found: COM28
Changing device to download mode...

USB Device REMOVAL
Type: @usb.inf,%usb\composite.devicedesc%;USB Composite Device
VidPid: VID_12D1&PID_1442
Instance id: 6&13f4c3e&0&1

USB Device INSERTION
Type: @usb.inf,%usb\composite.devicedesc%;USB Composite Device
VidPid: VID_12D1&PID_1442
Instance id: 6&13f4c3e&0&1
Device has signed firmware
Device found
Preparing to write...
Device Product: HUAWEI BV7R11EC2
Writing file 1 of 10...
Error downloading file 1 of 10
Error writing software

USB Device INSERTION
Type: @usb.inf,%usb\composite.devicedesc%;USB Composite Device
VidPid: VID_12D1&PID_14DC
Instance id: 6&13f4c3e&0&1
7/11/2018 4:06:36 PM Writing device finished with ERROR
Switching Diagnostic ports

USB Device REMOVAL
Type: @usb.inf,%usb\composite.devicedesc%;USB Composite Device
VidPid: VID_12D1&PID_14DC
Instance id: 6&13f4c3e&0&1

USB Device INSERTION
Type: @usb.inf,%usb\composite.devicedesc%;USB Composite Device
VidPid: VID_12D1&PID_1442
Instance id: 6&13f4c3e&0&1

Only 1 modem, selected to get information

Getting information from the device...
Getting information from the device...OK

Model: E5577s-932
Application port: COM28
Diagnostic port: --
IMEI: 866852026709508
Firmware Version: 21.329.63.00.1367
Build Date: --
DL Ver:2.0
DL Info:
swver:21.329.63.00.1367
isover:WEBUI_17.100.20.01.1367_MRE5
webuiver:WEBUI_17.100.20.01.1367_MRE5
product name:E5577s-932
dload type:0
Authority Id:866852026709508,0
Authority Ver:2

User: 119FB06F
User credits: 14