Thank Agonar!!!
I was eventually able to arrive to the end of the game thanks to your suggestion...
I was a bit more DIY... I PUT SOME FROZEN FOOD ON TOP OF THE CONSOLE while shooting Saren only with the basic gun (after have put the level to Casual and reduce all graphics).
Now, i have to say, I tried first with Irish lamb burgers box... didn't work...
I tried then with frozen green beans and frozen chicken... Eureka!! It worked, maybe the console is a healthy food type :-)
So, frozen food to cool it down, basic weapon, lower graphic rate and playing NON STOP (avoiding going to the pause menu) worked for me!
Shame on BW tough! Together with writing "NOT TO BE SOLD SEPARATELY" on he Trilogy case they should have add "VOUCHER INSIDE FOR GROCERY SHOP" :-(
Thank Agonar and all he others that gave tips to let me finish the game.
Exported character to ME2 and I'm so excited since already looks amazing...
Bella!
