HP 1040d Crossflashing or Firmware



I have a HP 1040d DVD burner that is getting really good making DVD/CD coasters. I was cleaning out my computer and opend a .exe file the other day and it accesed the HP drive. I thought I stopped it BEFORE it ran but maybe not. IT has the firmware EH23 and I know ther is a EH25 but I can’t find it anywhere! Then I thought I’d cross flash it like I did my Phillips to Benq but I can’t seem to find a good HOW TO for doing it? I really am getting tired of makin coasters!!!