The last Nokia Care Suite (2011.51.2.63048) can't flash RM-801 in dead mode so i shat my pants.
Reading the care suite docs carefully i've found this:
Recovery Flashing enabled for RM-817
Create a RM-817 dir under \Products folder, like this:
then copy RM-801 firmware files in RM-817 folder:
Now open the Care Suite and select the right model (RM-817):
Select the correct flash file, remember to use always the latest version, check on "Data package manager" for updated firmwares.
follow the instructions on screen:
When you are ready connect the phone holding the volume up button and let the care suite do his job:
After few minutes: