New to the site, not new to tech, not new to searching etc. So, I say that to say that i've already exhausted my youtube searching, this site searching, etc.
That being said...here is the scenario:
Downloaded the firmware update from pioneer. Placed the three files on a blank and formatted (fat32) microsd card at the root level.
Popped it into the h/u and ran the update per instructions. The update got to the end and noted that "update failed."
Turned car off, removed sd card, turned car back on, h/u no longer powers up.
-No longer powers up meaning, no fan, no lights