How to Remove Forgotten Passcode of iPhone – 6/7/8/X
You can also try 4uKey (https://goo.gl/Y7XYhv) to unlock disabled iPhone X/8/7/SE/6s/6 Plus/6/5s/5c/5/4s/4, iPad or iPod Touch in minutes without passcode or iTunes. Facebook: https://www.facebook.com/TenorshareOfficial/
Guys, if you’re having any kind of problems with the process visit http://support.apple.com/kb/TS3694?viewlocale=en_US&locale=en_US#9.
Here you can check your error and find the respective solution.