To unlock your MTN Huawei modem yourself go through the following step:

 

1.      Go to http://a-zgsm.com/huawei.php

2.      Input your IMEI Number.

3.      Input Security code that will be generated for you.

4.      Click Calculator, your Unlock code and Flash code is generated.

5.      Do not use the flash code.

6.      Use the unlock code

How to use the code:
1. To make use of the unlock code, insert an unauthorized SIM Card to your Huawei locked Modem.
i.e if you are using MTN Fastlink, remove the MTN SIM in it and put in either Zain, Etisalat or Glo SIM into your locked Modem

2. When you do so, a small Dialogue Box will be displayed on your screen and you would be prompt for the Modem’s Unlock Code. Just enter the Unlock code. You can now use your Huawei USB modem with SIM Cards from any other operator.

3. Now to use with any other operator SIM Card and Network, you will need to configure it for it to work with such operator, click open your Operator's Modem Icon on the
Desktop page

4. Next, click on “setting” from the modem interface, then click on “connection”, then click on “Add” to add connection setting

5. Now click on “common”, then enter your APN, Username and Password, leaving the Access Number as *99#

For MTN Faslink
APN: web.gprs.mtnnigeria.net
Username: web
Password: web

For Etisalat EasyNet
APN: Etisalat
Username: wap
Password: wap

For Glo HSI
APN: gloflat
Username: flat
Password: flat

For Zain Online
APN: internet.ng.zain.com
Username: internet