Long wait, zero service I had to wait 12 days to hear back from Keys2iPhone, only for them to tell me that my phone couldn't be unlocked and tried to up-sell me to a different service. Looks like the reviews for most carriers are good, but if you want a T-Mobile phone unlocked, go somewhere else.

iPhone 6 Unlocked with 24 Hours I was a bit skeptical at first trying one of these third-party unlocking services. After dealing with AT&T for over a week trying to them to unlock my iPhone, I decided I would try Keys2iPhone. Within 24 hours of submitting my request, I received an email saying "Your iPhone is now unlocked!" Sure enough, when I popped in the SIM card from T-Mobile it no longer said 'Invalid SIM'. I don't normally write reviews, but I was extremely satisfied with the service I received when I thought that I would be stuck with a locked iPhone with no help from AT&T.

Amazing Service and Got my 6 Plus unlocked while in contract I had an urgent international trip scheduled and was exploring the options of buying a cheap phone in the travelling country.. but then tumbled upon this post and read the reviews. At morning 1:30 signed up for this service and by same day evening 6:40 PM got my phone unlocked. I was skeptical in between how would they do it but who cares did the steps listed in the email and voila.. got the congratulations message in iTunes. If you are in AT&T you can surely give it a shot and they did what they promised. I will highly recommend keys2iphone

AT&T Unlock Started the process on June 28th, came back to me on June 1st stating they needed more money as the phone needed an extra service to unlock it. At first I was apprehensive as possible scam was going through my mind but decided to proceed. Paid the extra fee and 6 days later received an E-Mail stating that my iPhone 6S Plus was now unlocked. Followed the instructions and the phone fired up with NO problems. Transferred my information from my iTunes backup and everything is working a treat. Great service, many thanks, Paul

Sprint Unlock - Worked. I needed a Sprint unlock. Previously, I attempted to do this through Sprint but got the customer service run-around. I researched unlocking services, and I thought this seemed like it would be reliable. I paid the fee as advertised ($30). It took about 4 business days, and I received and email confirming the unlock. The phone is now correctly unlocked. Thank you.