I traveled to the US from India and wanted to use my Indian SIM card on a locked AT&T Samsung Galaxy S7 Active. I gave the necessary details (model # & IMEI #) via email to Cellublocker.net and made an online payment for the unlock code. They sent me the unlock code before the expected time frame, and I was able to unlock my phone without any problems.
As per their instructions, I made a video of the process of unlocking the phone and uploaded it to YouTube. I sent Cellunlocker.net a link to the video and had my payment refunded as promised. I have to say that I am extremely happy with their service and would recommend Cellunlocker.net to anyone wishing to unlock any phone and use a different service provider.
Bottom Line: Yes, I would recommend this to a friend
