1stly download d software here.
Its called DCCRAP.
i. nOW, if you use some memory card, remove it. remove sim card
and put anoda ntw sim card what you want to unlock.(it will display
ii.Plug your modem in to your computer,sometime connection manager
will display,close it.
iii. Unzip what you download and open dccrap.exe
iv. First select the manufacture as ZTE datacards
( No: 1) v. Select the model as Auto detect (recommended)
(No : 2 ) If you know the model and
which com port you use.u can do that way also
vi. Click find port button
(No: 3) . after your modem model will display below box vii. After
detect modem click unlock button
(No: 4 ) cheers you are done.After few seconds modem will unlock restart your
computer and use
Dont forget to say thanks.