searching the main tread v3 you can find my response to that a few pages before you posted. please do a search before posting a question like this.
I even posted the exact symptoms. e.g flashing MTP page and home pages.

There is a 'search' button at the bottom of the tread, do a simple search like 'kies'. But i do agree that such issues should be on page 1.

The fastest and easiest method is to format the internal SD card.

After backing up everything of course, either using dropbox or some other file transfer method. Like apachefilemanager