How do I remove Activation Lock on my iPhone 11?

If you are the owner who locked it, see:

How to remove Activation Lock - Apple Support

If this is a second-hand phone, and you are now discovering Activation Lock, see:

The All Too Common SAD Reality of Buying a Used iPad/iPhone – Apple Community

Only the owner of the account used to lock it can remove the activation lock.

Hello,

See this:

How to Unlock an iPad or iPhone? - Apple Community

Good luck.