This tool can generate the correct unlock code of Huawei E303, E369 and E357 modems. Currently it is free for use and can unlock your dongle.
Unlock code calculator software is still in beta stage hence it may give errors. If you are trying to unlock your Huawei dongle, then make sure you have only 10-attempts to enter the code. Once 10 attempts exhausted, then your dongle will be unlocked permanently.
This LoginPlus_Client_v5.0 calculator still under testing phase, which means it was not unlimited and forever.
Login details are:
For Huawei Modem:
For Others (Alcatel, Motorola, BlackBerry, ZTE, Pantech)
Update: LoginPlus Software is no more supported for free. Users who want to purchase unlock codes in cheap rates can refer this article.
I can provide Huawei, ZTE, LG, Blackberry, etc brands unlock codes in genuine price.