i had an issue with samsung last year with screen loosing pixels (dead pixels) they refused to fix it cause it was rooted ,i didnt let them go away cause of their warranty excuse , i did an official complaint to my country department of consumers who asked up to samsung proof that the screen was broken due to root ,a week after i got my screen replaced for free,some companies doesnt understand that there are things to be proven, i believe nintendo will face the e.u law too in such cases as this.