HelloBypassNoSNChange-V1.0

iCloud Sign 
iFacetime, iMessage 
Notifications 
Skip Setup 
OTA Update blocker 
Anti Reset blocker 

iPhone’s,

 iPhone 6S 6S Plus SE
 iPhone 7 7 Plus
 iPhone 8 8 Plus
 iPhone X

iPad’s 4G Cellular,

iPad Air 2 4G (A1567)
iPad Mini 4 4G (A1550)
iPad 5 2017 4G (A1823)
iPad 6 2018 4G (A1954)
iPad 7 2019 4G (A2198)(A2200)
iPad Pro 9.7 4G (A1674)(A1675)
iPad Pro 10.5 4G (A1709) (A1852)
iPad Pro 12.9 4G (A1652)
iPad Pro 12.9 2nd Gen 4G (A1671) (A1821)

You need to cleanly restore your iPhone to Latest IOS, then put your phone in DFU mode and click Enable Root Mode.
If it is Rooted mode then you can Activate it easily. When the device is activated, you need to connect to Wifi and restart your phone. When you restart your phone, you should log into iMessage first.

*If the Serial Number is changed, you must revert to the original Serial Number, if you continue to use Changed Serial Number, you will not be able to access the iServices