1) Download and put on the SD card.
2) Start CWM.
3) Go to mounts and storage, later format /cache, format /data, format /system. Go back to previous menu.
4) Go to advanced, later wipe dalvik cache. Go back to previous menu.
5) Go to install zip from sdcard, later choose zip from sdcard, select Performa V4 by Gerr_kpo.zip.
6) Wait to finish, go back to previous menu, later reboot system now.