I need help restoring a previous backup from an old, broken iPhone 11 to my new iPhone 15. Password had to be reset upon activating new phone as I did not recall the old password. When I plug in new phone to computer, activate iTunes, and attempt to restore the old 11 information to the new 15, it repeatedly tells me the password is incorrect and does not restore the information to my new phone. Any ideas on how to access the old backup that was saved to my computer? (iCloud had not been used). I am able to access Apple accounts with my updated password, so Im not sure why when trying to restore, it's telling me the password is incorrect.