"I unlocked my Samsung S4 without any problem. Used this service several times in the past and never had a problem, customer service is very helpful. Definitely recommended!"

"Very efficient service.Very simple to unlock. Successful with just one try. Even got refunded quickly for overpaying.Highly recommended...Dr Ong (Spain)"

"I was very skeptical about fastgsm.com because I have never heard of them before.I usually do my unlocks through a diff site,but they didnt support my phones carrier or model #.After an internet search I came across these guys and they were only unlock service to support my phone so I gave it a try and a little over 24hrs later i had the unlock code.They even provided the provider,subprovider,and defreeze codes which were a huge surprise because no other unlock site ive used provided these codes.I am extremely satisfied with the service and experience provided by them (fastgsm.com).Theyre a little more pricier than the other sites i used but deff worth it for hard to find codes and the level of service provided.I would deff return for future unlock codes,and deff recommend they're services.Great job!!!!"

"Probably one of the worst unlock and customer services ever.
I definitely do NOT recommend to use them. They will take your money and let your struggle with your problems.
I had to open a Paypal Dispute to get their attention even though i sent 2 emails to the support team, as advised by the pre-sale person on their website chat.
Avoid Avoid Avoid"

"I Used this service to USB unlock my Samsung Galaxy S Fascinate SGH-T959D and it worked Excellent."

"I used FastGSM to unlock two Samsung phones (GT-S3370 and GT-S8500) - very uncomplicated, fast (as the name implies) and reasonably priced (compared to local prices)."

"Hello, I use the service for unlock samsung galaxy s4 m919 tmo and the unlock code work great. "

"your service is good and fast by on line unlock program and it work good for my Samsung t669 phone for unlock"

"I've unlock 2 iPhones and a galaxy exhibit so far and I'll keep using fastgsm for as long as they are around. Thank you staff and all up there at fastgsm"

"I used the program to unlock a Samsung Galaxy S3 after I used the program to unlock the phone, the program said the phone was unlocked but it kept asking for the code, I entered the code as the support said but I just got my phone hardlocked now thanks to FastGSM and now they don't want to give me a full refund, I'm going to escalate the case very high in PayPal, you damaged my phone totally and now it cannot be unlocked. Thanks for the poor support service also. "

"VERY HAPPY WITH THIS SERVICE,PEOPLE ARE VERY HELPFUL,USED FEW TIMES ALREADY,ITS CHEAPER THEN ANYWHERE ELSE,WILL BE USING Again!:):)"

"DO NOT go anywhere else except FastGSM to unlock your phone. You will only waste time and money. I tried a few unlocking services and none could do it(a samsung i337m). For only 15 bucks I installed the software, followed the very simple instructions,connected my phones USB cable, one click and BAM! Worked perfectly. Now I can travel out of country and not get killed with roaming fees. I was starting to feel I'd never be able to unlock this phone. I was so impressed at the results I HAD to write this review. Do yourself a favor stop looking around at other services and use FastGSM! "

"hi guys, thx, now my sasung ativ s is unlock. Before I come in your website I tried 2 others without success, you are the best. Thx.
Best regards."

"Fast, easy, and convenient! I was trying to unlock my new Galaxy S4 from ATT, and was extremely frustrated. After trying to use the "free" online method, which not only didn't work for me, but also caused issues with my baseband and software, I was stuck. I called ATT, but their unlock code didn't work either due to the other shenanigans I had pulled with the "free" method, and their only solution was to contact Samsung Tech Support, who obviously sent me right back to ATT. I happened to chance upon FastGSM and their USB tool, and within 10 minutes, my other SIM card was up and running. What a lifesaver! Thank you!"

"Extremely fast, super efficient, no stress, no mess!
And on top of all I've even received my money back!!! Did you think can this be? Trust me! IT CAN!!!!"