zte mf667 tried to unlock-security data error-help

[zonetrichur]

manufacturer - ZTE modems
model - ZTE MF667

Selected Applications port COM20
Selected Diagnostics portCOM14

Found modem : MF667
Model : ZTE MF667
IMEI : 864389021999315
Firmware : BD_IDEAHDMF667V1.0.0B02
Compile date / time : Oct 12 2013 12:09:18
Chipset : Qualcomm MSM8200A
NAND Flash : HYNIX_HY27SF081G2A
SIM Lock status : Locked (Card Lock)

================================================== =================

Unlocking, please wait ...

Security data error !

Error code 84

Security data error !

unlock failed !


why above error?????

[Valdemaras]

Sorry, this firmware is customized and can not be unlocked by dc-unlocker client, You could try to flash ithttps://www.dc-unlocker.com/forum/sh...ad.php?t=20332 but there is no guarantee that unlock will work