I used the procedure below to unlock my Sun Broadband Wireless Modem (Huawei E1550), and now I am sharing it with you. I had tried this using the modem that comes with my postpaid Sun Broadband Wireless subscription. This is a straightforward process and should not take more than 5 minutes to complete.
How to Unlock your Sun Broadband Wireless Modem for free
Download the required files
Disclaimer: I had tested the below files and procedure but by downloading and following the instructions below, you agree that you use this file and try the procedure at your own risk. I’m not liable for any damages the procedure it might cause your modem 
Download the following:
Huawei Code Calculator
Huawei Code Writer
Please proceed to the next procedure…
NEXT → SBW Modem Unlock Step by Step Procedure
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thanks naunlock ko na ang sun broadband ko. thanks a lot. God bless
sir, unfortunately di madetect yung usb broadband ko. nakaka connect naman ako using it pero di sya makita ng code writer, blank lang yung port options. help naman po please…
It really works. Thanks.