Hola pues, la verdad es que llevo muchisimo tiempo buscando y leyendo, he hecho miles de pruebas y siempre me sale el mensaje de que alguien ha manipulado mi perfil, hoy he encontrado esto, el tutorial no es mio es de un usuario de otro foro que se llama Stupiditility no voy a decir de que foro es, pero en google lo encontrareis el tutorial viene a ser asi:
"You will need:
Usual equipment to gamesave
NXE Resigner
Hash Block Calculator
(I cant upload these because weve run out of bandwidth, but a quick search of the forums should get you these two applications)
Make a new game save on Forza 3 make sure you backup game save you want to recover and do not overwrite it!!!! You do not want to lose your game save you want to recover, its a pain already taking apart your hard drive and hooking it up to your PC thats if you don't have the XSata or that other make life easier hookup xd.
STEP 1:
After you have made a new game, now you have to make a copy of it from Xplorer360 after you have done so you will need to copy the device ID which is your HDD Device ID from the Xploder NXE Resigner, which I believe Forza 3 checks to make sure your Game Save is on the proper hard drive and on correct system. If you have a new system, and your game save was from your older xbox 360 you will need to copy the console ID from the newer game save.
STEP 2:
Now that you have copied the device id and console ID(IF YOU NEEDED TO.), open your old game save the one you want to recover check both boxes Device ID and Console ID and click Load IDs in the NXE Resigner, which will now load the newer IDs into your profile then click RESIGN button, after you have done that you are okay to close the program.
Step 3:
Now open Hash Block Calculator, then go to File>Open>Pick ForzaProfile
After yo have opened it go to Tools>Calculate Hash Block which will fix anything that is false and also re sign it make sure everything matches up.
Step 4:
Now after you done that you are okay to replace the recovered ForzaProfile with the new one that is on your hard drive. Then exit on Xplorer360 Program put together your hard drive and test it see if it works, if it does SWEET, and if it doesn't re check this tutorial see if you done everything correctly."
Si alguien se anima a probarlo que no se le olvide hacer una copia de seguridad de su partida original, ya que la del Forza 3 no se puede copiar, se tiene que mover.
Por cierto a mi no me ha salido, pero es posible que haya hecho algo mal.
Un saludo.