How to unlock Huawei HSDPA USB modems for free............................

Although it is not illegal to unlock modems,your warranty will be void with subscribers. So be careful about that.
This hint is valid for any kinds of Huawei HSPDA modems.
First you need to know the relevant unlock code.
To unlock Huawei modems it is based on the "IMEI number" of the modem. So that you should find the IMEI number of the relevant modem. It is 15 digits number. This number is normally printed on the modem or modem packing box.

Just we think that the number is 354300020014078..
Now you should open a browser (IE,Firefox or any.) and type below mentioned address on the web browser address bar.

http://bb5.at/huawei.php?imei=362268510011022

Then search

Now you will see a below mentioned dialog box.

 
As my example the unlock code is the number mentioned with "Entsperren/Unlock:". (I have circled it)

Then insert the SIM into the modem plug to the USB port. Open the "Mobile partner". Then it will ask for an unlock code. Then type the unlock code you have.

Have a fun.