What happens to the password if I disable the VCD through firmware upgrade or by any means

I thought the Essential 3.0 already shipped with the Unlocker VCD hidden, and that the Unlocker VCD only appears when you set a password (since it is required for unlocking the drive).  I don’t think it will let you hide the VCD while the drive is password protected, for that very reason – it’s required.  I believe as soon as you remove the password, the Unlocker VCD will hide itself again.

However, if this is in fact an older drive that still shipped with the “Smartware” VCD, and not the “Unlocker” VCD, then I believe if you were to hide the VCD before removing the password, your drive would become un-unlockable until you unhide the Smartware VCD… in that instance, you’d pretty much need to remove the password first before hiding the VCD if you want the drive to remain usable.

Whichever VCD is present… a password-protected drive, with no means to unlock it, becomes an expensive paperweight.