Is XZ1 still waterproof/water resistant or whatever after repair?

as the title writen above, is it still waterproof or water resistant after repair? my screen has cracked after i try to put it on its docking charger.
i want to replace it my self, but my friend tell me to bring it to Sony Service Center. so, can they do the "magic" to bring it waterproof/resistant again?
i just buy this phone for 2 weeks :|