Unlocked Player and Manager Editing - TUv1.6.6

1... Open FiFA Mod Manager

2... Import and Apply this mod. (Dont forget to Apply the mod after import, a lot of people forget about his step)

3... Launch the game using Mod Manager and have fun! (Meaning use Launch button in Mod Manager, a lot of people forget about this step)

NOTE:

If you change player`s Nationality in Career Mode and it reverts back, you are probably changing it to the one in the "same letter group", change it first to the one in different "letter group" and then go back to the "same letter group"

if the player is from Bosnia originally, but you want to change it to Brazil, in this case it will probably revert it back.

So what you need to do, is change it from Bosnia to Uruguay first and save game, and then after you do that, load the game and change it to Brazil.

NOTE2:

If your edited player stats reset in Career Modes after a match:

Wait for a transfer window to open, bump-up the player you want, loan the player to any club (The best option would be a short loan to pay less return fees), then cancel the loan and bring him back.