I haven't tried this yet. As of the time I am writing this post, it looks like they may have the version numbers switched. Today, I received a driver alert email from HP. Here is where the alert email pointed me:
http://www3.compaq.com/support/refer...e=PCN1480W.xml The page says the update is 1.1 but the download link points to 1.0
However, the main driver download page for the 5555
http://h18007.www1.hp.com/support/fi.../105_5644.html seems to have 1.0 & 1.1 switched.
I currently have ROM version 1.00.18 loaded on mine. If I look on the description for 1.1, its version numbers are higher than mine. If I am reading this right, it maybe the 55xx equivalent of the recent 2215 1.1 ROM update. I think I'll wait until I know what is up and for other brave souls to try it.
(Perhaps they will have this straightened out by the time more folks read this. If so, sorry for the confusion. And yes, I first accidentally posted this under another ROM update thread. Maybe I'm the confused person...)