Yeah
The sound is working

if someone else face the same trouble:

1.Run ALC268 Installer. (Depending on which works for you.)

2.Before Restarting delete /System/Library/Extensions/ALCInject.kext

3.Use Kext Helper b7 to install HDAEnabler.kext

4.Fix Permissions with Disk Utility

5.Restart and make sure that Internal Speakers is selected in Audio Settings

6. Then run HDA Fix v3 (Riavvia in seguito means Restart later, Riavvia means Restart now)

7. Click Restart Later

8.Repair permissions with Disk Utility

9.Restart

10.Bootup and sound and shutdown should work


thx incchansan now is the video thing and wireless héhé XD