I played with mods for over 2 years and no ban whatsoever. Because the game doesn't ban damage/defense boost. The only ban FGO does is RMT, which is transfering account to numerous fake IPs and buy quartz from numerous money currencies.
i un-install the playstore version, install the modded apk, then use Data Transfer to log-in?
which are the safe mods to use (or if the mods have a meter to toggle, what recommended settings)? In other words, are there any quest that i can't use the mods for? (this mod isn't detected by the game AT ALL?)