How to unlock iphone 6s

Hello,

Only the original owner can unlock the activation lock. There are no back doors or ways to bypass it. Apple will only remove the lock if they can verify that the original purchaser is asking to remove the lock.

If you are the original owner and forgot your Apple ID/password follow these articles:

If you forgot your Apple ID - Apple Support

If you forgot your Apple ID password - Apple Support

If you bought the iPhone from someone you can try contating them and ask for a refund or to remove the lock.

If you can't contact the original owner or the seller then you are sadly out of luck.

If you are the original owner or you get in contact with them follow these steps:

Turn off Find My iPhone Activation Lock - Apple Support

There is no way to unlock the Activation Lock without help from the users who original set the lock on his AppleID.