UPDATE: If it is not working try like this:
Hello guys I’m here again. One guy from Vietnam fixed the screen flickering. I don’t know his name so i’m not going to credit him. When he shows, I will credit him 🙂
So you need to flash this(link)
DO not wipe anything.
The zip file contains the apk of setcpu, and the thata of the app.
After installation of his, open your set cpu app and make the settings like this:
Have a nice day 😀
Next coming soon is rammode for ics roms 😀