I changed the lock screen password on my new Moto G4 Plus and forgot it. How do I unlock my phone so I can change it to something I remember?
I am afraid you are probably looking at a ‘hard reset’ which will result in losing your data. I do not have a G4+(1644) to test with.
Not sure if you can fix it through device manager, but Motorola suggests you can in the users guide…(https://motorola-global-portal.custhelp.com/app/answers/prod_answer_detail/a_id/110979/p/9686 )
You can find reset info in the users guide as well as youtube videos that will walk you through it. Let us know if you would like more assistance.