You can now unlock your Huawei – ZTE USB modem . If you want me to provide the unlock code for you, there will be a CHARGE OF N500 to be paid in form of MTN RECHARGE CARD. Simply send your modem’s MODEL Number + IMEI Number + N500 GLO recharge card to 07064204893. Example: Model Number – Huawei E160G and IMEI Number – 309690020192431
Please make sure that your modem is included in the list below before sending in your details. Your unlock code will be delivered as soon as possible.
The list below features modems which I can successfully unlock using the software I have on my computer:
COMPATIBLE MODELS OF HUAWEI 3G USB MODEMS
E156 E155, E1550 E1552, E156G E160, E160G E161 E166, E169 E169G, E170, E172, E176 E1762 E180 E182E E196 E226 E270, E800,E870 E880 EG162 E880 EG162 EG162G EG602 EG602G E271 E272 E510 E612 E618 E630 E620 E630+ E660 E660a
NOTE: You are allowed to input the unlock key 10 times after which the modem will become permanently locked. If you use the unlock key I provide and it doesn’t work after the first trial, STOP TRYING IT AND CONTACT ME.
If you make the mistake of inputting that code 10 times in a row, your modem will become permanently locked to the network that you bought it from.
HOW TO UNLOCK YOUR 3G USB INTERNET MODEM WITH THE UNLOCK CODE
Once I’ve provided you with the unlock key, follow the steps below to unlock the modem.
1. Insert a SIM CARD different from the network that sold you the modem. For example, if you bought your modem from GLO, remove the GLO SIM inside and put in MTN, ZAIN or ETISALAT.
2. Plug the USB Modem into your computer and open the dashboard from where you connect to the internet.
3. After a few seconds/minute, a small window will pop up requesting for the unlock code.
4. Type in the unlock code correctly and click enter.
5. If the unlocking was successfully, the small window will automatically disappear meaning that your usb internet modem has been successfully unlocked . As shown below, give the dashboard a few seconds and @ the bottom left corner, it will start showing the name of the network whose SIM is within the modem.

I would like to share my experience here . I used unlock code to unlock my huawei modem . I got it from the provider http://www.prounlocking.com/huawei-modem-unlocking-service/rs5wp10/

I HAVE AN HUAWEI MODEM E303 LOCKED TO MTN, NEED UNLOCK CODE

Model : Huawei E303
IMEI : 862565025640177
Serial NR. : D8G7S14320007466

LOCKED TO MTN