I wrote this article because most of people trying to unlock

their HSDPA modem,because some modem s works for just
 1 network.after unlock you can use any networks. It takes
just few seconds to unlock your modem


1. Unlock Huawei  HSDPA modems

When  we put some other network sim card it will ask some code.So im going to generate that code.It is easy.first of all you have to find your IMEI of mode.it will mention on your modem or modem box its 15 digit.now follow this.

 i.  Paste this below address to your address bar.

http://bb5.at/huawei.php?imei= your Huawei modem IMEI number 

ii. Now replace your Huawei modem IMEI number with your IMEI number like below

http://bb5.at/huawei.php?imei=357133035912053 

iii. Press Enter key,after you will see like this

 
iv. Now enter this unlock code when it ask the code. you are done. 



2 . Unlock ZTE  HSDPA modems

Some ZTE modems not asking unlock code.so no where to input our code.
so you can't do it like above method.you have to use some software for this.

Download software click here

i. First of all, if you use some memory card, remove it. remove sim  card
   and put sim card what you want to unlock.(it will display invalid sim)

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 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
your modem.This connection manager also working for this.
But if you want to use  ZTE connection manager click below link to download.

click here to download.
Thank you.