forgot ID and all related
my friend bought new iPhone 6s and someone set up for him, when got last update the device have been asking the E-mail ID and password, But he doesn't know the email ID or even the password or any of first name and last name been put on device.
we tried to use iTunes to restore it but its always asking for activation lock
as below
Activation Lock
This iPhone is linked to an Apple ID. Enter the Apple ID and password that were used to set up this iPhone. s●●●●●@gmail.com
iPhone 6s, iOS 11.1, na