Downgrade Ipaq 3630 PPC2002 to PPC2000 possible?

Hello!
Is it possible to downgrade an Ipaq, that has been updated to PPC2002, back to PPC 2000?
What happens if my computer crashes during the flash-process? Can I simply "over-flash"?
Thanx alot!!!
Is it possible to downgrade an Ipaq, that has been updated to PPC2002, back to PPC 2000?
What happens if my computer crashes during the flash-process? Can I simply "over-flash"?
Thanx alot!!!