zte k337z unlocking problem
 

Getting information from the modem...OK

Modem: --
Communication Port: COM6
IMEI: 911133701382118
Firmware Version: --
Customize Version: --
Dashboard Version: --
CD Enabled: False

User: 01323F7C
User credits: 0
07-02-2014 00:07:40 Starting write modem...
Validating file...
Looking for modem...
Modem found
Modem in download mode
Preparing to write...
Writing nocd.iso.wrapped...
Writing loader.wrapped...
Writing secondary_boot.wrapped...
Writing factory_tests.wrapped...
Writing modem.wrapped...
Writing mass_storage.wrapped...
Changing modem to diagnostic mode...
Waiting for modem answer...
Cannot change to download mode
Error writing Software
Changing modem to diagnostic mode...
Waiting for modem answer...
07-02-2014 00:09:18 Write modem finish

Getting information from the modem...ERROR
Cannot access modem

Getting information from the modem...OK

this log with dc
plzz help

Modem: K3770-Z
Communication Port: COM6
IMEI: 911133701382118
Firmware Version: BD_K3770V4.0
Customize Version: VDF_IN_K3770V1.0.0B01
Dashboard Version: O_WM_VDFINDK3770V1.0.0B01

afterwrite this version modem is okay but need to unlock