Here is what some of you guyz have been looking for.
Now let start. To unlock your mtn 3G modem .
1 To unlock your mtn huawei 3G modem yourself go to a-zgsm.com/huawei.php.
2 Input your imei number.
3 Input security code that will be generated by you.
4 Click calculator, your unlock code and flash code is generated.
5 Do not use flash code.
6 Insert sim [i.e other network apart from mtn] the window will ask you to input unlocking code.
7 Input the generated unlocking.
8 Click unlock.