Full-Service List : other devices 
https://www.iosfiles.com/imei-services

SMD GSM/MEID bypass with signal iPhone 8 MAC SOFTWARE
iPhone 8 and iPhone 8Plus iOS12 - iOS16

Instructions :

1. Update your iOS to the latest version iOS12-16 
1. Connect iPhone to wifi and go to the activation screen with login/ password 
2. Connect to SMD tool mac
3. Verify the ability to bypass “Your device is supported” message (mandatory)
5. Copy SN and register into device field
6. Go SMD and Choose checkboxes if you wish
7. Put the device in DFU Mode and follow the instructions 
8. Press Activate 

Need to do strictly with these steps !!
You can’t register into the database before you connect the device to SMD Tool for verification. 

Download latest version

https://bysmd.com/SMDRamdisk.pkg