All that matters is how strong is your resume !!
They do their primary filtering with the resume, and so, If you get selected for interview, chances are VERY HIGH you will get selected.
The first round is the technical interview, which is very easy..only verbal questions. No solving problems/puzzles, algos, and writing code. It is ridiculous to some extent.
Second round is panel interview with VPs etc executives. Again, a general discussion of why one wants to work in Samsung, in Korea, what are your plans etc..