HP PageWide Pro MFP 477dw Still works - Nov. 2025, Success!

Thank you for putting this together. Your efforts will end up saving me a good amount of money.
I wanted to share that I had a few problems and it took me awhile to figure out what was wrong.

First off I found a helpful video on YouTube which shows how to "pre boot USB firmware". This may be helpful for some.... Start the video at 1:06 (https://youtu.be/KqmcDb15S-E?si=pA3caUNFqwq3q0W0).

Second, my printer kept locking up/stuck on "verifying". I downloaded both files from your post and in the process of switching files on the USB (add an remove) I kept receiving an windows message that there was a system error on the drive. I used the tool to fix errors and thought that would fix it. After about the third time of adding/ removing, in/out and still receiving the error I decided to use a different USB. Loaded it with the 1921E file and it worked.

Thanks again!