Card successfully unlocked ! but, still locked

[nuwan]

I am trying to unlock MF 100 dongle. It gives the message when I clicked on Unlock.

Unlocking, please wait ...

Card successfully unlocked !

Credits left : 30


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But still it is locked.

Detecting card :

selection :
manufacturer - ZTE datacards
model - ZTE MF100

Found modem : MF100
Model : ZTE MF100
IMEI : 353164042476538
Firmware : BD_P671A1V1.0.3B21
SIM Lock status : Locked (Card Lock)

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

Please give me a solution as soon as possible.

[Vincentas]

Try unlocking again. Unlocking again same device does not require credits. This device should unlock without problems.

[nuwan]

I have tried several times. But, it is responding in the same way.
I am wondering why it is giving the message, "Successfully Unlocked".

[androidn]

what dc-unlocker version you are using ?

[nuwan]

I am using 1.00.0460

[Vincentas]

I am using 1.00.0460

Use latest version. 597 version. You can download it here: http://www.dc-unlocker.com/downloads/get/NgEJYCmv