How I can disable my iPhone

If you mean activate a disabled iPhone that you are locked out of, use the Related Article link or just click here: https://support.apple.com/en-us/HT204306

Let me know if this wasn’t what you were looking for.

Hi there.

Can you please be more specific on what it is that you want to do with your iPhone. Do you wish to fix a disabled iPhone? If so, use this link: https://support.apple.com/en-us/HT204306

If you wish to take your iPhone out of being disabled, then follow the steps in the Related Article in your post.