OK. Problem solved.
The file I converted with some-fucking-shitty-good-looking-great review having 3gp converter was corrupted. Yes the converter screwed the file. I can't remember the name to warn you others, sorry.
So, I make it like this, I used my KMPlayer to convert it(damn hard work to find proper coding that my gif animator could handle) into .avi. After that I ran it trough GIFanimator(great easy tool). And voila... Animated Gif. But it didn't allow me to make the file smaller, so I used Image ready to decrease the dimensions and voila again. It's there. But it still has 1,4MB, 8065resolution with 699 frames -.-
Now I'm lookng for a way to decrease the size more.