I'd be very careful about using the V2 BIOS on the V board. Although the utilized chipset is apparently identical, this is by far not sure (actually even rather very unlikely) for the additional components like logic gates, monitoring chips, onboard sound chip and such which are of course also programmed/controlled by the BIOS. Of course, if the board is to be written off anyway for an uograde to come, you can try.
But I'd think the chances of a mess-up resulting in an unbootable if not blown board are 85%+
I've just compared the specs for the two boards on MSI's website... Keeping my warning valid and even raises the percentage of failure to 90%+
If you intend to keeo the board as a spare or give it to somebody to use it, do not try to flash it with the V2 BIOS.