How big is the size of the new update

For me it 137 mb to update the game. I fixed my mobile device problem by binding my account and clearing data, though I doubt it a permanent solution to solve my problem.

I don't know for others but it took me more than 500Mb based on my data usage yesterday which is solely used by FGO.

I don't know for others but it took me more than 500Mb based on my data usage yesterday which is solely used by FGO.