Activation lock on iphone

The only way to get into a phone which is activation locked is to enter the Apple ID and Password which was used to set up the phone. Why don't you know the Apple ID and Password on this phone?

If you purchased a used iPhone which is activation locked, you likely got scammed. Either the person who sold you the phone to remove activation lock or return the phone for refund.

See this link if this is your situation --> https://discussions.apple.com/docs/DOC-250001038

You don’t! If you could, Activation Lock would be useless.

You must contact the original owner or the iPhone will remain useless forever.

Turn off Activation Lock - Apple Support