The unlock tool was offline because of servers getting a lot of cache memory blocks and a lot of bots were trying to spam it and take it down. The authors have been working and fixed the problem.
(Do not hestitate about the surveys because the authors are giving this for free and they’ve spent a lot of time in working and coding to allow you unlock your phones…)
It works for every kind of lock ( lost mode, erased mode etc..)
If you have any questons email me.
The tool is still in beta version and it shows errors and bugs sometimes but it worked almost on every iphone most of the time.
I am not the author of this tool, I am just showing how to use it. The tool should be used on your own responsibility. It can not damage your phone anyway.
Tons of experiments with software and hardware were made but non of them worked, or even if it did, the phone was having really small amount of functions and it was not worth it.
After so many tools and chip replacements on phone boards leading to useless broken devices, a real k-a software has been made. A tool that made a revolution and made the imposibble to become possible. Mainly it started 2 years ago while some hackers found a way and to hack the cloud storage of apple and share tons of celebrity nude photos online.
Introducing: The iCloud Unlocker v1.3 
The iCloud Unlocker tool gains acess to your phone only by having it connected to the computer with the USB Lightning Cable.
For sucessfully unlocking make sure you follow the steps in the video. The .rar file contains the software + .PDF tutorials and videos on different options and tricks for unlocking icloud.
If you are familiar with phone unlocking tools you may know that they use online SERVERS to establish connection. This means you will have to have a computer with an good internet connection to unlock your phone. Sometimes the tool may ask you to manually enter your IMEI code.
Remember, you will have to enter the IMEI code that is shown when you click the (i) button on the icloud screen.
(Not the one that is written on the back of your iPhone) The tool is still in beta version, we can guarantee that it will not damage your phone or computer, however keep in mind that you are using it on your own and we wont take any responsibility.
How to remove Bypass iCloud on any iPhone! The Best Unlock Solution!