problem flashing E5577cs-321

[scorpion70]

Hi, i have problem flashing my router E5577cs-321 with Huawei_E5577s_321_Firmware_21.180.99.03.00_general _SIGNED.dgtks and Huawei_E5577s_321_Firmware_21.200.05.00.00_SIGNED. dgtks from support area to unlock by dc-unlocker , always i got error flashing and lost 4 euro from my credit with no success ..

User: scorpion70
User credits: 7
12/5/2016 7:06:03 PM Starting to write device...
Validating file...
File to write: C:\Users\Shop\Desktop\Huawei_E5577s_321_Firmware_2 1.200.05.00.00_SIGNED.dgtks
File version: 21.200.05.00.00
Looking for attached port...
Attached port found: COM20
Changing device to download mode...

USB Device REMOVAL
Type: @usb.inf,%usb\composite.devicedesc%;USB Composite Device
VidPid: VID_12D1&PID_1442
Instance id: 5&223588ae&0&4

USB Device INSERTION
Type: @usb.inf,%usb\composite.devicedesc%;USB Composite Device
VidPid: VID_12D1&PID_1442
Instance id: 5&223588ae&0&4
Device has signed firmware
Device found
Preparing to write...
Device Product: HUAWEI BV7R11EC1
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: 5&223588ae&0&4
12/5/2016 7:07:04 PM Writing device finished with ERROR

User: scorpion70
User credits: 3

User: scorpion70
User credits: 3
12/5/2016 7:12:52 PM Starting to write device...
Validating file...
File to write: C:\Users\Shop\Desktop\Huawei_E5577s_321_Firmware_2 1.180.99.03.00_general_SIGNED.dgtks
File version: 21.180.99.03.00
Looking for attached port...
Attached port found: COM20
Changing device to download mode...

USB Device REMOVAL
Type: @usb.inf,%usb\composite.devicedesc%;USB Composite Device
VidPid: VID_12D1&PID_1442
Instance id: 5&223588ae&0&4

USB Device INSERTION
Type: @usb.inf,%usb\composite.devicedesc%;USB Composite Device
VidPid: VID_12D1&PID_1442
Instance id: 5&223588ae&0&4
Device has signed firmware
Device found
Preparing to write...
Device Product: HUAWEI BV7R11EC1
Writing file 1 of 10...
Error downloading file 1 of 10
Error writing software
12/5/2016 7:14:23 PM Writing device finished with ERROR

User: scorpion70
User credits: 3

[Valdemaras]

Please provide original detect info of your device.
Good this you have read warning when software launches, now you know what is the risk.

[scorpion70]

Getting information from the device...OK

Model: E5577Cs-321
Application port: COM7
Diagnostic port: --
IMEI: 860783033778259
Firmware Version: 21.200.07.01.397
Build Date: --
DL Ver:2.0
DL Info:
swver:21.200.07.01.397
isover:WEBUI_17.100.11.08.397_MRE5
webuiver:WEBUI_17.100.11.08.397_MRE5
product name:E5577Cs-321
dload type:0
Authority Id:860783033778259,0
Authority Ver:2

[Valdemaras]

this one is not flashable to any firmware due to it's customization.