I've been doing it this way and it worked 99% of the times, the thing is when it fails it really kills you. Some guy told me not to use exit but go back into the game and turn off the console to avoid some sram save (or something like that); no idea but I don't think I'll trust ez flash omega again for my gb/gbc games :/Try opening the menu, waiting five seconds, then using the exit option in the menu.
That's what I've been doing, and I don't really have terribly many corruption issues.












