can't remember old Password to set up my iphone
canto remember old password to the phone to finish setting it up
iPhone 12 Pro, iOS 15
Click on this link to read what to do "If you forgot your Apple ID [Account] password" --> https://support.apple.com/HT201487
or go directly to this link --> http://iforgot.apple.com/
Also read about "What to do after [or before] you change your Apple ID email address or password" --> https://support.apple.com/HT204071