I tried to unlock with DC unlocker client got this error.
And also I tried to flash with Hisilicon writer with below file
Huawei_E3372h_607_Firmware_21.200.07.00.00_SIGNED
DC - Unlocker 2 Client 1.00.1332
Detecting modem :
selection :
manufacturer - Huawei modems
model - Auto detect (recommended)
Found Applications port COM49
Found modem : E3372
Model : Huawei E3372h
IMEI : 866850022775713
Serial NR. : Y4QDU15B27003636
Firmware : 22.200.15.00.356
Compile date / time : Nov 3 2015 20:22:40
Hardware ver. : CL2E3372HM
Dashboard version : WEBUI_17.100.12.00.356_HILINK
Web UI version : WEBUI_17.100.12.00.356_HILINK
SIM Lock status : Locked (Card Lock)
Wrong codes entered : 10 (unlock attempts left : 0)
================================================== =================
================================================== =================
DC - Unlocker 2 Client 1.00.1332
Detecting modem :
selection :
manufacturer - Huawei modems
model - Huawei E3372h
Selected Applications port COM49
Selected Diagnostics port COM49
modem not found !
================================================== =================
================================================== =================
DC - Unlocker 2 Client 1.00.1332
Detecting modem :
selection :
manufacturer - Huawei modems
model - Auto detect (recommended)
Found Applications port COM49
Found modem : E3372
Model : Huawei E3372h
IMEI : 866850022775713
Serial NR. : Y4QDU15B27003636
Firmware : 22.200.15.00.356
Compile date / time : Nov 3 2015 20:22:40
Hardware ver. : CL2E3372HM
Dashboard version : WEBUI_17.100.12.00.356_HILINK
Web UI version : WEBUI_17.100.12.00.356_HILINK
SIM Lock status : Locked (Card Lock)
Wrong codes entered : 10 (unlock attempts left : 0)
================================================== =================
Unlocking, please wait ...
AT command error
Error code 37
unlock failed !
================================================== =================
Writing error with flasher
Only 1 modem, selected to get information
Getting information from the device...
Getting information from the device...OK
Model: E3372
Application port: COM49
Diagnostic port: --
IMEI: 866850022775713
Firmware Version: 22.200.15.00.356
Build Date: Nov 3 2015, 20:22:40
DL Ver:2.0
DL Info:
swver:22.200.15.00.356
isover:WEBUI_17.100.12.00.356_HILINK
webuiver:WEBUI_17.100.12.00.356_HILINK
product name:E3372
dload type:0
Authority Id:866850022775713,0
Authority Ver:2
User: 01323F98
User credits: 4
10/22/2016 1:53:30 PM Starting to write device...
Validating file...
File to write: F:\Branded Boxs\DC Unlocker\Huawei Firmwares\Huawei_E3372h_607_Firmware_21.200.07.00. 00_SIGNED.dgtks
File version: 21.200.07.00.00
Looking for attached port...
Attached port found: COM49
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&1140a153&0&4
USB Device INSERTION
Type: @usb.inf,%usb\composite.devicedesc%;USB Composite Device
VidPid: VID_12D1&PID_1442
Instance id: 5&1140a153&0&4
Device has signed firmware
Device found
Preparing to write...
Device Product: HUAWEI BV7R11HS
Writing file 1 of 10...
Error downloading file 1 of 10
Error writing software
10/22/2016 1:54:26 PM Writing device finished with ERROR
Array
need help