Unlock E5577Cs-321

[IkaMazini]

DC - Unlocker 2 Client 1.00.1403

Detecting modem :

selection :
manufacturer - Huawei modems
model - Auto detect (recommended)

Found Applications port COM174

Found modem         : E5577Cs-321
Model               : Huawei AuthVer 4 modem (New)
IMEI                : 864695030601456
Serial NR.          : D2LDU17320005707
Firmware            : 21.200.07.01.397
Dashboard version   : WEBUI_17.100.11.08.397_MRE5
Web UI version      : WEBUI_17.100.11.08.397_MRE5
SIM Lock status     : Locked (Card Lock)
Wrong codes entered : 0 (unlock attempts left : 10)

Log from HuaweiHiSiliconFirmwareWriter_v24:

Only 1 modem, selected to get information

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

Model: E5577Cs-321
Application port: COM174
Diagnostic port: --
IMEI: 864695030601456
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:864695030601456,0
Authority Ver:2

User: 000******
User credits: 12
7/27/2018 11:30:26 Starting to write device...
Validating file...
File to write: C:\Documents and Settings\Administrator\Desktop\Huawei_E5577s_321_Firmware_21.180.99.03.00_general_SIGNED.dgtks
File version: 21.180.99.03.00
Looking for attached port...
Attached port found: COM174
Changing device to download mode...

USB Device REMOVAL
Type: USB Composite Device
VidPid: Vid_12d1&Pid_1442
Instance id: 5&68842f8&0&3

USB Device INSERTION
Type: USB Composite Device
VidPid: Vid_12d1&Pid_1442
Instance id: 5&68842f8&0&3
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: HUAWEI Mobile Connect - USB Device
VidPid: Vid_12d1&Pid_1f01
Instance id: 0123456789ABCDEF

USB Device REMOVAL
Type: HUAWEI Mobile Connect - USB Device
VidPid: Vid_12d1&Pid_1f01
Instance id: 0123456789ABCDEF

USB Device INSERTION
Type: USB Composite Device
VidPid: Vid_12d1&Pid_1442
Instance id: 5&68842f8&0&3
7/27/2018 11:31:18 Writing device finished with ERROR

Cant flash with firmware: Huawei_E5577s_321_Firmware_21.180.99.03.00_general _SIGNED.dgtks

How to unlock?

[Valdemaras]

Maybe can't unlock. If flashing does not help then may be no other way for it.

[IkaMazini]

Sorry... wrong post.