Hi QB_5,
Welcome to the HP Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I see that you have attempted to do the firmware update with no success seeing that the error will not clear. I see you also stated that you attempted to do the other steps that I have outlined with no results as well. The only thing left to do would be to contact HP Total care at 1-800-474-6836 or you can Contact HP Worldwide if you are outside North America.
I do apologize for the inconvenience on this matter.
Thank you for your time.