Forum:Morphtronic questions

Ok I have two questions based on the following situations:

Morphtronic Boomboxen and Morphtronic Cameran are in attack position and Blue-Eyes White Dragon attacks cameran. in this case can I use Gadget Driver's effect to shift Boomboxen to DEF then use Boomboxen's effect to negate Blue-Eyes White Dragon's attack?

Morphtronic Boomboxen and Morphtronic Cameran are in attack position and the Opponent actavates the spell card: Dark Core on Boomboxen. in this case can I use Gadget Driver's effect to shift Cameran to DEF then use Cameran's effect to stop Dark Core? (I think its too late because the effect was already actatvated but I want to be sure)