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With your Apple ID, you go to this page and follow its process, to recover your Apple ID's password:
and enter your Apple ID there, and then click on 'Continue'.
Does that answer your question? and is your iPhone now once more accessible?
Don't hurry the password ***** or password ***** process... it may take as much as 10 minutes, after submitting a request with regard to your Apple ID password, for it to propagate through all of Apple's servers and become 'current' and usable.