Item description:

1. Delete all GT7 PS4 saves
2. Copy the save into your console
3. Turn off internet ( Settings > Network > Connect to the internet > Off )
4. Start the game, Select OK on pop up messages and when all trophies will automatically pop

For PS5 version :

1. Delete all GT7 PS5 saves
2. Copy the PS4 save into your console
3. Turn off internet ( Settings > Network > Connect to the internet > Off )
4. Start PS4 version ( Platinum for PS4 should pop )
5. At the offline menu, connect to network and went into the world map
6. When game connects and is online again, go to settings and delete all network data
7. Start PS5 version and the Platinum should pop