Here is how to manually apply a squad update to your ROM using a save editor.

This was one of the largest early patches, fixing gameplay issues such as the FIFA Trainer shot elevation arrows resetting and Joy-Con controller functionality losses during the halftime flow.

If you want, I can:

The biggest complaint about the FIFA 18 ROM is the outdated squads. EA's servers are offline, so the "Download Latest Squads" button inside the game .